20948740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24359}}^1$

素因数の和:24411

約数の個数: 24

約数和(自身を含む): 45017280

約数和(自身を除く): 24068540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24359, 48718, 97436, 121795, 243590, 487180, 1047437, 2094874, 4189748, 5237185, 10474370, 20948740]

約数ペア:

[(1, 20948740), (2, 10474370), (4, 5237185), (5, 4189748), (10, 2094874), (20, 1047437), (43, 487180), (86, 243590), (172, 121795), (215, 97436), (430, 48718), (860, 24359)]