9988040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5807}}^1$

素因数の和:5861

約数の個数: 32

約数和(自身を含む): 22999680

約数和(自身を除く): 13011640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5807, 11614, 23228, 29035, 46456, 58070, 116140, 232280, 249701, 499402, 998804, 1248505, 1997608, 2497010, 4994020, 9988040]

約数ペア:

[(1, 9988040), (2, 4994020), (4, 2497010), (5, 1997608), (8, 1248505), (10, 998804), (20, 499402), (40, 249701), (43, 232280), (86, 116140), (172, 58070), (215, 46456), (344, 29035), (430, 23228), (860, 11614), (1720, 5807)]