628991996

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{1990481}}^1$

素因数の和:1990564

約数の個数: 12

約数和(自身を含む): 1114669920

約数和(自身を除く): 485677924

約数列:

[1, 2, 4, 79, 158, 316, 1990481, 3980962, 7961924, 157247999, 314495998, 628991996]

約数ペア:

[(1, 628991996), (2, 314495998), (4, 157247999), (79, 7961924), (158, 3980962), (316, 1990481)]