1261891180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5735869}}^1$

素因数の和:5735889

約数の個数: 24

約数和(自身を含む): 2890878480

約数和(自身を除く): 1628987300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 5735869, 11471738, 22943476, 28679345, 57358690, 63094559, 114717380, 126189118, 252378236, 315472795, 630945590, 1261891180]

約数ペア:

[(1, 1261891180), (2, 630945590), (4, 315472795), (5, 252378236), (10, 126189118), (11, 114717380), (20, 63094559), (22, 57358690), (44, 28679345), (55, 22943476), (110, 11471738), (220, 5735869)]