18045680

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1181}}^1$

素因数の和:1385

約数の個数: 40

約数和(自身を含む): 42211584

約数和(自身を除く): 24165904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1181, 1528, 1910, 2362, 3056, 3820, 4724, 5905, 7640, 9448, 11810, 15280, 18896, 23620, 47240, 94480, 225571, 451142, 902284, 1127855, 1804568, 2255710, 3609136, 4511420, 9022840, 18045680]

約数ペア:

[(1, 18045680), (2, 9022840), (4, 4511420), (5, 3609136), (8, 2255710), (10, 1804568), (16, 1127855), (20, 902284), (40, 451142), (80, 225571), (191, 94480), (382, 47240), (764, 23620), (955, 18896), (1181, 15280), (1528, 11810), (1910, 9448), (2362, 7640), (3056, 5905), (3820, 4724)]