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