20262820

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2287}}^1$

素因数の和:2739

約数の個数: 24

約数和(自身を含む): 42666624

約数和(自身を除く): 22403804

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 2287, 4430, 4574, 8860, 9148, 11435, 22870, 45740, 1013141, 2026282, 4052564, 5065705, 10131410, 20262820]

約数ペア:

[(1, 20262820), (2, 10131410), (4, 5065705), (5, 4052564), (10, 2026282), (20, 1013141), (443, 45740), (886, 22870), (1772, 11435), (2215, 9148), (2287, 8860), (4430, 4574)]