8061640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 18740700

約数和(自身を除く): 10679060

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 109, 172, 215, 218, 344, 430, 436, 545, 860, 872, 1090, 1720, 1849, 2180, 3698, 4360, 4687, 7396, 9245, 9374, 14792, 18490, 18748, 23435, 36980, 37496, 46870, 73960, 93740, 187480, 201541, 403082, 806164, 1007705, 1612328, 2015410, 4030820, 8061640]

約数ペア:

[(1, 8061640), (2, 4030820), (4, 2015410), (5, 1612328), (8, 1007705), (10, 806164), (20, 403082), (40, 201541), (43, 187480), (86, 93740), (109, 73960), (172, 46870), (215, 37496), (218, 36980), (344, 23435), (430, 18748), (436, 18490), (545, 14792), (860, 9374), (872, 9245), (1090, 7396), (1720, 4687), (1849, 4360), (2180, 3698)]