12877640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7487}}^1$

素因数の和:7541

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 16774840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7487, 14974, 29948, 37435, 59896, 74870, 149740, 299480, 321941, 643882, 1287764, 1609705, 2575528, 3219410, 6438820, 12877640]

約数ペア:

[(1, 12877640), (2, 6438820), (4, 3219410), (5, 2575528), (8, 1609705), (10, 1287764), (20, 643882), (40, 321941), (43, 299480), (86, 149740), (172, 74870), (215, 59896), (344, 37435), (430, 29948), (860, 14974), (1720, 7487)]