20634050

素因数分解:

$2^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{1009}}^1$

素因数の和:1430

約数の個数: 24

約数和(自身を含む): 38511300

約数和(自身を除く): 17877250

約数列:

[1, 2, 5, 10, 25, 50, 409, 818, 1009, 2018, 2045, 4090, 5045, 10090, 10225, 20450, 25225, 50450, 412681, 825362, 2063405, 4126810, 10317025, 20634050]

約数ペア:

[(1, 20634050), (2, 10317025), (5, 4126810), (10, 2063405), (25, 825362), (50, 412681), (409, 50450), (818, 25225), (1009, 20450), (2018, 10225), (2045, 10090), (4090, 5045)]