81373640

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{10651}}^1$

素因数の和:10853

約数の個数: 32

約数和(自身を含む): 184066560

約数和(自身を除く): 102692920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 10651, 21302, 42604, 53255, 85208, 106510, 213020, 426040, 2034341, 4068682, 8137364, 10171705, 16274728, 20343410, 40686820, 81373640]

約数ペア:

[(1, 81373640), (2, 40686820), (4, 20343410), (5, 16274728), (8, 10171705), (10, 8137364), (20, 4068682), (40, 2034341), (191, 426040), (382, 213020), (764, 106510), (955, 85208), (1528, 53255), (1910, 42604), (3820, 21302), (7640, 10651)]