70421620

素因数分解:

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

素因数の和:9027

約数の個数: 24

約数和(自身を含む): 148264200

約数和(自身を除く): 77842580

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 8609, 17218, 34436, 43045, 86090, 172180, 3521081, 7042162, 14084324, 17605405, 35210810, 70421620]

約数ペア:

[(1, 70421620), (2, 35210810), (4, 17605405), (5, 14084324), (10, 7042162), (20, 3521081), (409, 172180), (818, 86090), (1636, 43045), (2045, 34436), (4090, 17218), (8180, 8609)]