Last Updated
：2025/12/04
superabundant number
Noun
Japanese Meaning
（数論）すべての正の整数の中で、その数よりも小さい任意の正の整数と比べたとき、約数の和をその数で割った値（豊富さ指数）がより大きい正の整数。
（ plural ）
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(number theory) A positive integer whose abundancy index is greater than that of any lesser positive integer. / Used other than figuratively or idiomatically: see superabundant, number.
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superabundant number
While writing a paper on divisor functions, I noted that 12 is a superabundant number with an abundancy index larger than that of any smaller positive integer.
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While writing a paper on divisor functions, I noted that 12 is a superabundant number with an abundancy index larger than that of any smaller positive integer.
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