80921860

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{31859}}^1$

素因数の和:31995

約数の個数: 24

約数和(自身を含む): 171279360

約数和(自身を除く): 90357500

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 31859, 63718, 127436, 159295, 318590, 637180, 4046093, 8092186, 16184372, 20230465, 40460930, 80921860]

約数ペア:

[(1, 80921860), (2, 40460930), (4, 20230465), (5, 16184372), (10, 8092186), (20, 4046093), (127, 637180), (254, 318590), (508, 159295), (635, 127436), (1270, 63718), (2540, 31859)]