87601820

素因数分解:

$2^2\times 5^1\times {\mathrm{4380091}}^1$

素因数の和:4380100

約数の個数: 12

約数和(自身を含む): 183963864

約数和(自身を除く): 96362044

約数列:

[1, 2, 4, 5, 10, 20, 4380091, 8760182, 17520364, 21900455, 43800910, 87601820]

約数ペア:

[(1, 87601820), (2, 43800910), (4, 21900455), (5, 17520364), (10, 8760182), (20, 4380091)]