640424449

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1\times {\mathrm{919}}^1$

素因数の和:1920

約数の個数: 16

約数和(自身を含む): 740033280

約数和(自身を除く): 99608831

約数列:

[1, 7, 113, 791, 881, 919, 6167, 6433, 99553, 103847, 696871, 726929, 809639, 5667473, 91489207, 640424449]

約数ペア:

[(1, 640424449), (7, 91489207), (113, 5667473), (791, 809639), (881, 726929), (919, 696871), (6167, 103847), (6433, 99553)]