321571856

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{490201}}^1$

素因数の和:490250

約数の個数: 20

約数和(自身を含む): 638243004

約数和(自身を除く): 316671148

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 490201, 980402, 1960804, 3921608, 7843216, 20098241, 40196482, 80392964, 160785928, 321571856]

約数ペア:

[(1, 321571856), (2, 160785928), (4, 80392964), (8, 40196482), (16, 20098241), (41, 7843216), (82, 3921608), (164, 1960804), (328, 980402), (656, 490201)]