20923040

素因数分解:

$2^5\times 5^1\times {\mathrm{130769}}^1$

素因数の和:130784

約数の個数: 24

約数和(自身を含む): 49431060

約数和(自身を除く): 28508020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 130769, 261538, 523076, 653845, 1046152, 1307690, 2092304, 2615380, 4184608, 5230760, 10461520, 20923040]

約数ペア:

[(1, 20923040), (2, 10461520), (4, 5230760), (5, 4184608), (8, 2615380), (10, 2092304), (16, 1307690), (20, 1046152), (32, 653845), (40, 523076), (80, 261538), (160, 130769)]