18910780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135077}}^1$

素因数の和:135093

約数の個数: 24

約数和(自身を含む): 45386208

約数和(自身を除く): 26475428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135077, 270154, 540308, 675385, 945539, 1350770, 1891078, 2701540, 3782156, 4727695, 9455390, 18910780]

約数ペア:

[(1, 18910780), (2, 9455390), (4, 4727695), (5, 3782156), (7, 2701540), (10, 1891078), (14, 1350770), (20, 945539), (28, 675385), (35, 540308), (70, 270154), (140, 135077)]