80412440

素因数分解:

$2^3\times 5^1\times {\mathrm{2010311}}^1$

素因数の和:2010322

約数の個数: 16

約数和(自身を含む): 180928080

約数和(自身を除く): 100515640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2010311, 4020622, 8041244, 10051555, 16082488, 20103110, 40206220, 80412440]

約数ペア:

[(1, 80412440), (2, 40206220), (4, 20103110), (5, 16082488), (8, 10051555), (10, 8041244), (20, 4020622), (40, 2010311)]