18289580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19457}}^1$

素因数の和:19513

約数の個数: 24

約数和(自身を含む): 39227328

約数和(自身を除く): 20937748

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19457, 38914, 77828, 97285, 194570, 389140, 914479, 1828958, 3657916, 4572395, 9144790, 18289580]

約数ペア:

[(1, 18289580), (2, 9144790), (4, 4572395), (5, 3657916), (10, 1828958), (20, 914479), (47, 389140), (94, 194570), (188, 97285), (235, 77828), (470, 38914), (940, 19457)]