20947780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149627}}^1$

素因数の和:149643

約数の個数: 24

約数和(自身を含む): 50275008

約数和(自身を除く): 29327228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149627, 299254, 598508, 748135, 1047389, 1496270, 2094778, 2992540, 4189556, 5236945, 10473890, 20947780]

約数ペア:

[(1, 20947780), (2, 10473890), (4, 5236945), (5, 4189556), (7, 2992540), (10, 2094778), (14, 1496270), (20, 1047389), (28, 748135), (35, 598508), (70, 299254), (140, 149627)]