140843240

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8609}}^1$

素因数の和:9029

約数の個数: 32

約数和(自身を含む): 317709000

約数和(自身を除く): 176865760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 8180, 8609, 16360, 17218, 34436, 43045, 68872, 86090, 172180, 344360, 3521081, 7042162, 14084324, 17605405, 28168648, 35210810, 70421620, 140843240]

約数ペア:

[(1, 140843240), (2, 70421620), (4, 35210810), (5, 28168648), (8, 17605405), (10, 14084324), (20, 7042162), (40, 3521081), (409, 344360), (818, 172180), (1636, 86090), (2045, 68872), (3272, 43045), (4090, 34436), (8180, 17218), (8609, 16360)]