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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

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superabundant number

Noun

(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.

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。