19385020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12269}}^1$

素因数の和:12357

約数の個数: 24

約数和(自身を含む): 41227200

約数和(自身を除く): 21842180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12269, 24538, 49076, 61345, 122690, 245380, 969251, 1938502, 3877004, 4846255, 9692510, 19385020]

約数ペア:

[(1, 19385020), (2, 9692510), (4, 4846255), (5, 3877004), (10, 1938502), (20, 969251), (79, 245380), (158, 122690), (316, 61345), (395, 49076), (790, 24538), (1580, 12269)]