561220

素因数分解:

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

素因数の和:2571

約数の個数: 24

約数和(自身を含む): 1286208

約数和(自身を除く): 724988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 2551, 5102, 10204, 12755, 25510, 28061, 51020, 56122, 112244, 140305, 280610, 561220]

約数ペア:

[(1, 561220), (2, 280610), (4, 140305), (5, 112244), (10, 56122), (11, 51020), (20, 28061), (22, 25510), (44, 12755), (55, 10204), (110, 5102), (220, 2551)]