Word info

abundancy index

Noun

Meaning

abundancy index (plural abundance indices or abundancy indexes)

(mathematics) The divisor function of an integer divided by the integer.
The abundancy index of 20 is 2.1 because 1 + 2 + 4 + 5 + 10 + 20 = 42 and 42/20 = 2.1.

Source: en.wiktionary.org

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