20880451520

素因数分解:

$2^6\times 5^1\times {\mathrm{65251411}}^1$

素因数の和:65251428

約数の個数: 28

約数和(自身を含む): 49721575944

約数和(自身を除く): 28841124424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65251411, 130502822, 261005644, 326257055, 522011288, 652514110, 1044022576, 1305028220, 2088045152, 2610056440, 4176090304, 5220112880, 10440225760, 20880451520]

約数ペア:

[(1, 20880451520), (2, 10440225760), (4, 5220112880), (5, 4176090304), (8, 2610056440), (10, 2088045152), (16, 1305028220), (20, 1044022576), (32, 652514110), (40, 522011288), (64, 326257055), (80, 261005644), (160, 130502822), (320, 65251411)]