205121575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{15569}}^1$

素因数の和:15627

約数の個数: 24

約数和(自身を含む): 278017920

約数和(自身を除く): 72896345

約数列:

[1, 5, 17, 25, 31, 85, 155, 425, 527, 775, 2635, 13175, 15569, 77845, 264673, 389225, 482639, 1323365, 2413195, 6616825, 8204863, 12065975, 41024315, 205121575]

約数ペア:

[(1, 205121575), (5, 41024315), (17, 12065975), (25, 8204863), (31, 6616825), (85, 2413195), (155, 1323365), (425, 482639), (527, 389225), (775, 264673), (2635, 77845), (13175, 15569)]