20960780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24373}}^1$

素因数の和:24425

約数の個数: 24

約数和(自身を含む): 45043152

約数和(自身を除く): 24082372

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24373, 48746, 97492, 121865, 243730, 487460, 1048039, 2096078, 4192156, 5240195, 10480390, 20960780]

約数ペア:

[(1, 20960780), (2, 10480390), (4, 5240195), (5, 4192156), (10, 2096078), (20, 1048039), (43, 487460), (86, 243730), (172, 121865), (215, 97492), (430, 48746), (860, 24373)]