20289580

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{1181}}^1$

素因数の和:2049

約数の個数: 24

約数和(自身を含む): 42693840

約数和(自身を除く): 22404260

約数列:

[1, 2, 4, 5, 10, 20, 859, 1181, 1718, 2362, 3436, 4295, 4724, 5905, 8590, 11810, 17180, 23620, 1014479, 2028958, 4057916, 5072395, 10144790, 20289580]

約数ペア:

[(1, 20289580), (2, 10144790), (4, 5072395), (5, 4057916), (10, 2028958), (20, 1014479), (859, 23620), (1181, 17180), (1718, 11810), (2362, 8590), (3436, 5905), (4295, 4724)]