19883380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90379}}^1$

素因数の和:90399

約数の個数: 24

約数和(自身を含む): 45551520

約数和(自身を除く): 25668140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90379, 180758, 361516, 451895, 903790, 994169, 1807580, 1988338, 3976676, 4970845, 9941690, 19883380]

約数ペア:

[(1, 19883380), (2, 9941690), (4, 4970845), (5, 3976676), (10, 1988338), (11, 1807580), (20, 994169), (22, 903790), (44, 451895), (55, 361516), (110, 180758), (220, 90379)]