85210040

素因数分解:

$2^3\times 5^1\times {\mathrm{2130251}}^1$

素因数の和:2130262

約数の個数: 16

約数和(自身を含む): 191722680

約数和(自身を除く): 106512640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2130251, 4260502, 8521004, 10651255, 17042008, 21302510, 42605020, 85210040]

約数ペア:

[(1, 85210040), (2, 42605020), (4, 21302510), (5, 17042008), (8, 10651255), (10, 8521004), (20, 4260502), (40, 2130251)]