8639380

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{887}}^1$

素因数の和:1383

約数の個数: 24

約数和(自身を含む): 18200448

約数和(自身を除く): 9561068

約数列:

[1, 2, 4, 5, 10, 20, 487, 887, 974, 1774, 1948, 2435, 3548, 4435, 4870, 8870, 9740, 17740, 431969, 863938, 1727876, 2159845, 4319690, 8639380]

約数ペア:

[(1, 8639380), (2, 4319690), (4, 2159845), (5, 1727876), (10, 863938), (20, 431969), (487, 17740), (887, 9740), (974, 8870), (1774, 4870), (1948, 4435), (2435, 3548)]