20097520

素因数分解:

$2^4\times 5^1\times {\mathrm{251219}}^1$

素因数の和:251232

約数の個数: 20

約数和(自身を含む): 46726920

約数和(自身を除く): 26629400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251219, 502438, 1004876, 1256095, 2009752, 2512190, 4019504, 5024380, 10048760, 20097520]

約数ペア:

[(1, 20097520), (2, 10048760), (4, 5024380), (5, 4019504), (8, 2512190), (10, 2009752), (16, 1256095), (20, 1004876), (40, 502438), (80, 251219)]