20225080

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4909}}^1$

素因数の和:5023

約数の個数: 32

約数和(自身を含む): 45957600

約数和(自身を除く): 25732520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4909, 9818, 19636, 24545, 39272, 49090, 98180, 196360, 505627, 1011254, 2022508, 2528135, 4045016, 5056270, 10112540, 20225080]

約数ペア:

[(1, 20225080), (2, 10112540), (4, 5056270), (5, 4045016), (8, 2528135), (10, 2022508), (20, 1011254), (40, 505627), (103, 196360), (206, 98180), (412, 49090), (515, 39272), (824, 24545), (1030, 19636), (2060, 9818), (4120, 4909)]