81077240

素因数分解:

$2^3\times 5^1\times {\mathrm{2026931}}^1$

素因数の和:2026942

約数の個数: 16

約数和(自身を含む): 182423880

約数和(自身を除く): 101346640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2026931, 4053862, 8107724, 10134655, 16215448, 20269310, 40538620, 81077240]

約数ペア:

[(1, 81077240), (2, 40538620), (4, 20269310), (5, 16215448), (8, 10134655), (10, 8107724), (20, 4053862), (40, 2026931)]