6438820

素因数分解:

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

素因数の和:7539

約数の個数: 24

約数和(自身を含む): 13837824

約数和(自身を除く): 7399004

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 7487, 14974, 29948, 37435, 74870, 149740, 321941, 643882, 1287764, 1609705, 3219410, 6438820]

約数ペア:

[(1, 6438820), (2, 3219410), (4, 1609705), (5, 1287764), (10, 643882), (20, 321941), (43, 149740), (86, 74870), (172, 37435), (215, 29948), (430, 14974), (860, 7487)]