题解 | #完全数计算#
完全数计算
https://www.nowcoder.com/practice/7299c12e6abb437c87ad3e712383ff84
n = int(input())
c = 0
for i in range(1,n+1):
sum = 0
for j in range(1,i//2+1):
if i%j == 0:
sum += j
if sum == i:
c += 1
print(c)
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