28715620

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1583}}^1$

素因数の和:2499

約数の個数: 24

約数和(自身を含む): 60407424

約数和(自身を除く): 31691804

約数列:

[1, 2, 4, 5, 10, 20, 907, 1583, 1814, 3166, 3628, 4535, 6332, 7915, 9070, 15830, 18140, 31660, 1435781, 2871562, 5743124, 7178905, 14357810, 28715620]

約数ペア:

[(1, 28715620), (2, 14357810), (4, 7178905), (5, 5743124), (10, 2871562), (20, 1435781), (907, 31660), (1583, 18140), (1814, 15830), (3166, 9070), (3628, 7915), (4535, 6332)]