| changeset 380 | 669b72283b55 |
| parent 94 | 8c92864c184b |
| 379:682b6f66fe11 | 380:669b72283b55 |
|---|---|
1 def is_perfect_square(n): |
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2 i = 1 |
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3 while i * i < n: |
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4 i += 1 |
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5 return i * i == n, i |
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6 |
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7 def aliquot(n): |
1 def aliquot(n): |
8 sum = 1 |
2 sum = 1 |
9 i = 2 |
3 i = 2 |
10 |
4 |
11 is_ps, root = is_perfect_square(n) |
5 while i * i < n: |
12 while i < root: |
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13 if n % i == 0: |
6 if n % i == 0: |
14 sum += i + (n / i) |
7 sum += i + (n / i) |
15 i += 1 |
8 i += 1 |
16 return sum |
9 return sum |
17 |
10 |