640084804

素因数分解:

$2^2\times {\mathrm{3917}}^1\times {\mathrm{40853}}^1$

素因数の和:44774

約数の個数: 12

約数和(自身を含む): 1120461804

約数和(自身を除く): 480377000

約数列:

[1, 2, 4, 3917, 7834, 15668, 40853, 81706, 163412, 160021201, 320042402, 640084804]

約数ペア:

[(1, 640084804), (2, 320042402), (4, 160021201), (3917, 163412), (7834, 81706), (15668, 40853)]