720627404

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{421913}}^1$

素因数の和:421985

約数の個数: 24

約数和(自身を含む): 1464885408

約数和(自身を除く): 744258004

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 421913, 843826, 1687652, 2953391, 5906782, 11813564, 25736693, 51473386, 102946772, 180156851, 360313702, 720627404]

約数ペア:

[(1, 720627404), (2, 360313702), (4, 180156851), (7, 102946772), (14, 51473386), (28, 25736693), (61, 11813564), (122, 5906782), (244, 2953391), (427, 1687652), (854, 843826), (1708, 421913)]