20530760

素因数分解:

$2^3\times 5^1\times {\mathrm{513269}}^1$

素因数の和:513280

約数の個数: 16

約数和(自身を含む): 46194300

約数和(自身を除く): 25663540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 513269, 1026538, 2053076, 2566345, 4106152, 5132690, 10265380, 20530760]

約数ペア:

[(1, 20530760), (2, 10265380), (4, 5132690), (5, 4106152), (8, 2566345), (10, 2053076), (20, 1026538), (40, 513269)]