20524660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78941}}^1$

素因数の和:78963

約数の個数: 24

約数和(自身を含む): 46417896

約数和(自身を除く): 25893236

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78941, 157882, 315764, 394705, 789410, 1026233, 1578820, 2052466, 4104932, 5131165, 10262330, 20524660]

約数ペア:

[(1, 20524660), (2, 10262330), (4, 5131165), (5, 4104932), (10, 2052466), (13, 1578820), (20, 1026233), (26, 789410), (52, 394705), (65, 315764), (130, 157882), (260, 78941)]