20109580

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9397}}^1$

素因数の和:9513

約数の個数: 24

約数和(自身を含む): 42629328

約数和(自身を除く): 22519748

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9397, 18794, 37588, 46985, 93970, 187940, 1005479, 2010958, 4021916, 5027395, 10054790, 20109580]

約数ペア:

[(1, 20109580), (2, 10054790), (4, 5027395), (5, 4021916), (10, 2010958), (20, 1005479), (107, 187940), (214, 93970), (428, 46985), (535, 37588), (1070, 18794), (2140, 9397)]