81519080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{119881}}^1$

素因数の和:119909

約数の個数: 32

約数和(自身を含む): 194208840

約数和(自身を除く): 112689760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 119881, 239762, 479524, 599405, 959048, 1198810, 2037977, 2397620, 4075954, 4795240, 8151908, 10189885, 16303816, 20379770, 40759540, 81519080]

約数ペア:

[(1, 81519080), (2, 40759540), (4, 20379770), (5, 16303816), (8, 10189885), (10, 8151908), (17, 4795240), (20, 4075954), (34, 2397620), (40, 2037977), (68, 1198810), (85, 959048), (136, 599405), (170, 479524), (340, 239762), (680, 119881)]