| author | Prabhu Ramachandran <prabhu@aero.iitb.ac.in> |
| Mon, 21 Jun 2010 00:49:03 -0400 | |
| branch | scipy2010 |
| changeset 412 | ca04d463c573 |
| parent 380 | 669b72283b55 |
| permissions | -rw-r--r-- |
|
64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
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1 |
def aliquot(n): |
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380
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
354
diff
changeset
|
2 |
"""returns the aliquot of a number which |
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669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
354
diff
changeset
|
3 |
is defined as the sum of all the proper |
|
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
354
diff
changeset
|
4 |
divisors of a number""" |
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94
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
5 |
sum = 1 |
|
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
6 |
i = 2 |
|
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
7 |
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354
5dc6c3673f9d
Changes made during REC Chennai workshop.
Puneeth Chaganti <punchagan@fossee.in>
parents:
94
diff
changeset
|
8 |
while i * i < n: |
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64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
9 |
if n % i == 0: |
|
94
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
10 |
sum += i + (n / i) |
|
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
11 |
i += 1 |
|
380
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
354
diff
changeset
|
12 |
if i*i == n: sum += i |
|
64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
13 |
return sum |
|
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
14 |
|
|
94
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
15 |
n = int(raw_input('Enter a number? '))
|
|
8c92864c184b
Almost last set of official solutions and final quiz.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
64
diff
changeset
|
16 |
print aliquot(n) |