15815140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71887}}^1$

素因数の和:71907

約数の個数: 24

約数和(自身を含む): 36231552

約数和(自身を除く): 20416412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 71887, 143774, 287548, 359435, 718870, 790757, 1437740, 1581514, 3163028, 3953785, 7907570, 15815140]

約数ペア:

[(1, 15815140), (2, 7907570), (4, 3953785), (5, 3163028), (10, 1581514), (11, 1437740), (20, 790757), (22, 718870), (44, 359435), (55, 287548), (110, 143774), (220, 71887)]