205126640

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{22691}}^1$

素因数の和:22817

約数の個数: 40

約数和(自身を含む): 481161168

約数和(自身を除く): 276034528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 22691, 45382, 90764, 113455, 181528, 226910, 363056, 453820, 907640, 1815280, 2564083, 5128166, 10256332, 12820415, 20512664, 25640830, 41025328, 51281660, 102563320, 205126640]

約数ペア:

[(1, 205126640), (2, 102563320), (4, 51281660), (5, 41025328), (8, 25640830), (10, 20512664), (16, 12820415), (20, 10256332), (40, 5128166), (80, 2564083), (113, 1815280), (226, 907640), (452, 453820), (565, 363056), (904, 226910), (1130, 181528), (1808, 113455), (2260, 90764), (4520, 45382), (9040, 22691)]