Last Updated
：2025/12/03
abundancy index
Noun
Japanese Meaning
整数に対して、全ての約数の和（除数関数の値）をその整数で割った値、すなわち整数の豊富さ（abundance）を示す数学的指標
（ plural ）
（ plural ）
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(mathematics) The divisor function of an integer divided by the integer.
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abundancy index
When computing the abundancy index of 12, we divide the sum of its divisors, 28, by 12 to obtain 7/3.
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When computing the abundancy index of 12, we divide the sum of its divisors, 28, by 12 to obtain 7/3.
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