18227980

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1061}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 38359440

約数和(自身を除く): 20131460

約数列:

[1, 2, 4, 5, 10, 20, 859, 1061, 1718, 2122, 3436, 4244, 4295, 5305, 8590, 10610, 17180, 21220, 911399, 1822798, 3645596, 4556995, 9113990, 18227980]

約数ペア:

[(1, 18227980), (2, 9113990), (4, 4556995), (5, 3645596), (10, 1822798), (20, 911399), (859, 21220), (1061, 17180), (1718, 10610), (2122, 8590), (3436, 5305), (4244, 4295)]