2025-07-29 18:05:02 +0000 UTC

class Solution:
    def checkPerfectNumber(self, num: int) -> bool:
        if num == 1:
            return False
        count = 1
        for i in range(2, int(num**0.5) + 1):
            if num % i == 0:
                count += i + (num // i)
        return num == count