18038420

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3187}}^1$

素因数の和:3479

約数の個数: 24

約数和(自身を含む): 38026464

約数和(自身を除く): 19988044

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3187, 5660, 6374, 12748, 15935, 31870, 63740, 901921, 1803842, 3607684, 4509605, 9019210, 18038420]

約数ペア:

[(1, 18038420), (2, 9019210), (4, 4509605), (5, 3607684), (10, 1803842), (20, 901921), (283, 63740), (566, 31870), (1132, 15935), (1415, 12748), (2830, 6374), (3187, 5660)]