80713040

素因数分解:

$2^4\times 5^1\times {\mathrm{1008913}}^1$

素因数の和:1008926

約数の個数: 20

約数和(自身を含む): 187658004

約数和(自身を除く): 106944964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1008913, 2017826, 4035652, 5044565, 8071304, 10089130, 16142608, 20178260, 40356520, 80713040]

約数ペア:

[(1, 80713040), (2, 40356520), (4, 20178260), (5, 16142608), (8, 10089130), (10, 8071304), (16, 5044565), (20, 4035652), (40, 2017826), (80, 1008913)]