417778820

素因数分解:

$2^2\times 5^1\times {\mathrm{20888941}}^1$

素因数の和:20888950

約数の個数: 12

約数和(自身を含む): 877335564

約数和(自身を除く): 459556744

約数列:

[1, 2, 4, 5, 10, 20, 20888941, 41777882, 83555764, 104444705, 208889410, 417778820]

約数ペア:

[(1, 417778820), (2, 208889410), (4, 104444705), (5, 83555764), (10, 41777882), (20, 20888941)]