20845940

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1033}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 43862280

約数和(自身を除く): 23016340

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1033, 2018, 2066, 4036, 4132, 5045, 5165, 10090, 10330, 20180, 20660, 1042297, 2084594, 4169188, 5211485, 10422970, 20845940]

約数ペア:

[(1, 20845940), (2, 10422970), (4, 5211485), (5, 4169188), (10, 2084594), (20, 1042297), (1009, 20660), (1033, 20180), (2018, 10330), (2066, 10090), (4036, 5165), (4132, 5045)]