2142580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9739}}^1$

素因数の和:9759

約数の個数: 24

約数和(自身を含む): 4908960

約数和(自身を除く): 2766380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 9739, 19478, 38956, 48695, 97390, 107129, 194780, 214258, 428516, 535645, 1071290, 2142580]

約数ペア:

[(1, 2142580), (2, 1071290), (4, 535645), (5, 428516), (10, 214258), (11, 194780), (20, 107129), (22, 97390), (44, 48695), (55, 38956), (110, 19478), (220, 9739)]