20512971350

素因数分解:

$2^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{2516929}}^1$

素因数の和:2517104

約数の個数: 24

約数和(自身を含む): 38388216360

約数和(自身を除く): 17875245010

約数列:

[1, 2, 5, 10, 25, 50, 163, 326, 815, 1630, 4075, 8150, 2516929, 5033858, 12584645, 25169290, 62923225, 125846450, 410259427, 820518854, 2051297135, 4102594270, 10256485675, 20512971350]

約数ペア:

[(1, 20512971350), (2, 10256485675), (5, 4102594270), (10, 2051297135), (25, 820518854), (50, 410259427), (163, 125846450), (326, 62923225), (815, 25169290), (1630, 12584645), (4075, 5033858), (8150, 2516929)]