80641916

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{491719}}^1$

素因数の和:491764

約数の個数: 12

約数和(自身を含む): 144565680

約数和(自身を除く): 63923764

約数列:

[1, 2, 4, 41, 82, 164, 491719, 983438, 1966876, 20160479, 40320958, 80641916]

約数ペア:

[(1, 80641916), (2, 40320958), (4, 20160479), (41, 1966876), (82, 983438), (164, 491719)]