16647640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10151}}^1$

素因数の和:10203

約数の個数: 32

約数和(自身を含む): 38374560

約数和(自身を除く): 21726920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10151, 20302, 40604, 50755, 81208, 101510, 203020, 406040, 416191, 832382, 1664764, 2080955, 3329528, 4161910, 8323820, 16647640]

約数ペア:

[(1, 16647640), (2, 8323820), (4, 4161910), (5, 3329528), (8, 2080955), (10, 1664764), (20, 832382), (40, 416191), (41, 406040), (82, 203020), (164, 101510), (205, 81208), (328, 50755), (410, 40604), (820, 20302), (1640, 10151)]