128013560

素因数分解:

$2^3\times 5^1\times {\mathrm{3200339}}^1$

素因数の和:3200350

約数の個数: 16

約数和(自身を含む): 288030600

約数和(自身を除く): 160017040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3200339, 6400678, 12801356, 16001695, 25602712, 32003390, 64006780, 128013560]

約数ペア:

[(1, 128013560), (2, 64006780), (4, 32003390), (5, 25602712), (8, 16001695), (10, 12801356), (20, 6400678), (40, 3200339)]