20807540090

素因数分解:

$2^1\times 5^1\times {\mathrm{7621}}^1\times {\mathrm{273029}}^1$

素因数の和:280657

約数の個数: 16

約数和(自身を含む): 37458623880

約数和(自身を除く): 16651083790

約数列:

[1, 2, 5, 10, 7621, 15242, 38105, 76210, 273029, 546058, 1365145, 2730290, 2080754009, 4161508018, 10403770045, 20807540090]

約数ペア:

[(1, 20807540090), (2, 10403770045), (5, 4161508018), (10, 2080754009), (7621, 2730290), (15242, 1365145), (38105, 546058), (76210, 273029)]