20025868

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{499}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 35840000

約数和(自身を除く): 15814132

約数列:

[1, 2, 4, 79, 127, 158, 254, 316, 499, 508, 998, 1996, 10033, 20066, 39421, 40132, 63373, 78842, 126746, 157684, 253492, 5006467, 10012934, 20025868]

約数ペア:

[(1, 20025868), (2, 10012934), (4, 5006467), (79, 253492), (127, 157684), (158, 126746), (254, 78842), (316, 63373), (499, 40132), (508, 39421), (998, 20066), (1996, 10033)]