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# 5.35 (Perfect number) A positive integer is called a perfect number if it is equal to the
# sum of all of its positive divisors, excluding itself. For example, 6 is the first perfect
# number, because 6 = 3 + 2 + 1. The next is 28 = 14 + 7 + 4 + 2 + 1.
# There are four perfect numbers less than 10,000. Write a program to find these
# four numbers.
for i in range(3, 10000 + 1):
sum = 0
for j in range(1, (i // 2) + 1):
if i % j == 0:
sum += j
if sum == i:
print(i)
