20615420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147253}}^1$

素因数の和:147269

約数の個数: 24

約数和(自身を含む): 49477344

約数和(自身を除く): 28861924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147253, 294506, 589012, 736265, 1030771, 1472530, 2061542, 2945060, 4123084, 5153855, 10307710, 20615420]

約数ペア:

[(1, 20615420), (2, 10307710), (4, 5153855), (5, 4123084), (7, 2945060), (10, 2061542), (14, 1472530), (20, 1030771), (28, 736265), (35, 589012), (70, 294506), (140, 147253)]