87243640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198281}}^1$

素因数の和:198303

約数の個数: 32

約数和(自身を含む): 214144560

約数和(自身を除く): 126900920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 198281, 396562, 793124, 991405, 1586248, 1982810, 2181091, 3965620, 4362182, 7931240, 8724364, 10905455, 17448728, 21810910, 43621820, 87243640]

約数ペア:

[(1, 87243640), (2, 43621820), (4, 21810910), (5, 17448728), (8, 10905455), (10, 8724364), (11, 7931240), (20, 4362182), (22, 3965620), (40, 2181091), (44, 1982810), (55, 1586248), (88, 991405), (110, 793124), (220, 396562), (440, 198281)]