21 lines
524 B
Python
21 lines
524 B
Python
"""
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找出1~9999之间的所有完美数
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完美数是除自身外其他所有因子的和正好等于这个数本身的数
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例如: 6 = 1 + 2 + 3, 28 = 1 + 2 + 4 + 7 + 14
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Version: 0.1
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Author: 骆昊
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Date: 2018-03-02
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"""
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import math
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for num in range(2, 10000):
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result = 0
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for factor in range(1, int(math.sqrt(num)) + 1):
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if num % factor == 0:
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result += factor
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if factor > 1 and num // factor != factor:
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result += num // factor
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if result == num:
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print(num)
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