80628796

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{491639}}^1$

素因数の和:491684

約数の個数: 12

約数和(自身を含む): 144542160

約数和(自身を除く): 63913364

約数列:

[1, 2, 4, 41, 82, 164, 491639, 983278, 1966556, 20157199, 40314398, 80628796]

約数ペア:

[(1, 80628796), (2, 40314398), (4, 20157199), (41, 1966556), (82, 983278), (164, 491639)]