20778421870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122226011}}^1$

素因数の和:122226035

約数の個数: 16

約数和(自身を含む): 39601227888

約数和(自身を除く): 18822806018

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 122226011, 244452022, 611130055, 1222260110, 2077842187, 4155684374, 10389210935, 20778421870]

約数ペア:

[(1, 20778421870), (2, 10389210935), (5, 4155684374), (10, 2077842187), (17, 1222260110), (34, 611130055), (85, 244452022), (170, 122226011)]