78825080

素因数分解:

$2^3\times 5^1\times {\mathrm{1970627}}^1$

素因数の和:1970638

約数の個数: 16

約数和(自身を含む): 177356520

約数和(自身を除く): 98531440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1970627, 3941254, 7882508, 9853135, 15765016, 19706270, 39412540, 78825080]

約数ペア:

[(1, 78825080), (2, 39412540), (4, 19706270), (5, 15765016), (8, 9853135), (10, 7882508), (20, 3941254), (40, 1970627)]