20257090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{41341}}^1$

素因数の和:41362

約数の個数: 24

約数和(自身を含む): 42416892

約数和(自身を除く): 22159802

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 41341, 82682, 206705, 289387, 413410, 578774, 1446935, 2025709, 2893870, 4051418, 10128545, 20257090]

約数ペア:

[(1, 20257090), (2, 10128545), (5, 4051418), (7, 2893870), (10, 2025709), (14, 1446935), (35, 578774), (49, 413410), (70, 289387), (98, 206705), (245, 82682), (490, 41341)]