18408020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19583}}^1$

素因数の和:19639

約数の個数: 24

約数和(自身を含む): 39481344

約数和(自身を除く): 21073324

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19583, 39166, 78332, 97915, 195830, 391660, 920401, 1840802, 3681604, 4602005, 9204010, 18408020]

約数ペア:

[(1, 18408020), (2, 9204010), (4, 4602005), (5, 3681604), (10, 1840802), (20, 920401), (47, 391660), (94, 195830), (188, 97915), (235, 78332), (470, 39166), (940, 19583)]