78012680

素因数分解:

$2^3\times 5^1\times {\mathrm{1950317}}^1$

素因数の和:1950328

約数の個数: 16

約数和(自身を含む): 175528620

約数和(自身を除く): 97515940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1950317, 3900634, 7801268, 9751585, 15602536, 19503170, 39006340, 78012680]

約数ペア:

[(1, 78012680), (2, 39006340), (4, 19503170), (5, 15602536), (8, 9751585), (10, 7801268), (20, 3900634), (40, 1950317)]