42108820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{161957}}^1$

素因数の和:161979

約数の個数: 24

約数和(自身を含む): 95231304

約数和(自身を除く): 53122484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 161957, 323914, 647828, 809785, 1619570, 2105441, 3239140, 4210882, 8421764, 10527205, 21054410, 42108820]

約数ペア:

[(1, 42108820), (2, 21054410), (4, 10527205), (5, 8421764), (10, 4210882), (13, 3239140), (20, 2105441), (26, 1619570), (52, 809785), (65, 647828), (130, 323914), (260, 161957)]