A perfect number occurs whent the sum of all divisors of a positive integer, except the number itself, equals the number.
Example
28 = 1 + 2 + 4 + 7 + 14;
so return true
10 ~= 1 + 2 + 5
so return false
Solve

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Last Solution submitted on Mar 25, 2026

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PHAM MINH HIEU Matthew Bolyard Hoang Minh Tri bao

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