80840120

素因数分解:

$2^3\times 5^1\times {\mathrm{2021003}}^1$

素因数の和:2021014

約数の個数: 16

約数和(自身を含む): 181890360

約数和(自身を除く): 101050240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2021003, 4042006, 8084012, 10105015, 16168024, 20210030, 40420060, 80840120]

約数ペア:

[(1, 80840120), (2, 40420060), (4, 20210030), (5, 16168024), (8, 10105015), (10, 8084012), (20, 4042006), (40, 2021003)]