Last Updated:2025/11/09
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完全数

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Source Word

nombre perfecte

Noun
masculine numeral perfect

完全数

English Meaning
perfect number
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28 は完全数です。自分自身を除く約数の和(1 + 2 + 4 + 7 + 14)が 28 と等しいからです。

28 is a perfect number because the sum of its proper divisors (1 + 2 + 4 + 7 + 14) equals 28.

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plural

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