20513780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{146527}}^1$

素因数の和:146543

約数の個数: 24

約数和(自身を含む): 49233408

約数和(自身を除く): 28719628

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 146527, 293054, 586108, 732635, 1025689, 1465270, 2051378, 2930540, 4102756, 5128445, 10256890, 20513780]

約数ペア:

[(1, 20513780), (2, 10256890), (4, 5128445), (5, 4102756), (7, 2930540), (10, 2051378), (14, 1465270), (20, 1025689), (28, 732635), (35, 586108), (70, 293054), (140, 146527)]