16 lines
325 B
Python
16 lines
325 B
Python
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from lib_misc import sum_proper_divisors
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def euler_021():
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t = 0
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for n in range(1, 10000):
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s = sum_proper_divisors(n)
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if n != s and n == sum_proper_divisors(s):
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t += n
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return t
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if __name__ == "__main__":
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assert(euler_021() == 31626)
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print("e021.py: {}".format(euler_021()))
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