20181336680

素因数分解:

$2^3\times 5^1\times {\mathrm{504533417}}^1$

素因数の和:504533428

約数の個数: 16

約数和(自身を含む): 45408007620

約数和(自身を除く): 25226670940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504533417, 1009066834, 2018133668, 2522667085, 4036267336, 5045334170, 10090668340, 20181336680]

約数ペア:

[(1, 20181336680), (2, 10090668340), (4, 5045334170), (5, 4036267336), (8, 2522667085), (10, 2018133668), (20, 1009066834), (40, 504533417)]