205125910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2551}}^1$

素因数の和:2629

約数の個数: 64

約数和(自身を含む): 436575744

約数和(自身を除く): 231449834

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 43, 55, 85, 86, 110, 170, 187, 215, 374, 430, 473, 731, 935, 946, 1462, 1870, 2365, 2551, 3655, 4730, 5102, 7310, 8041, 12755, 16082, 25510, 28061, 40205, 43367, 56122, 80410, 86734, 109693, 140305, 216835, 219386, 280610, 433670, 477037, 548465, 954074, 1096930, 1206623, 1864781, 2385185, 2413246, 3729562, 4770370, 6033115, 9323905, 12066230, 18647810, 20512591, 41025182, 102562955, 205125910]

約数ペア:

[(1, 205125910), (2, 102562955), (5, 41025182), (10, 20512591), (11, 18647810), (17, 12066230), (22, 9323905), (34, 6033115), (43, 4770370), (55, 3729562), (85, 2413246), (86, 2385185), (110, 1864781), (170, 1206623), (187, 1096930), (215, 954074), (374, 548465), (430, 477037), (473, 433670), (731, 280610), (935, 219386), (946, 216835), (1462, 140305), (1870, 109693), (2365, 86734), (2551, 80410), (3655, 56122), (4730, 43367), (5102, 40205), (7310, 28061), (8041, 25510), (12755, 16082)]