78906040

素因数分解:

$2^3\times 5^1\times {\mathrm{1972651}}^1$

素因数の和:1972662

約数の個数: 16

約数和(自身を含む): 177538680

約数和(自身を除く): 98632640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1972651, 3945302, 7890604, 9863255, 15781208, 19726510, 39453020, 78906040]

約数ペア:

[(1, 78906040), (2, 39453020), (4, 19726510), (5, 15781208), (8, 9863255), (10, 7890604), (20, 3945302), (40, 1972651)]