28796860

素因数分解:

$2^2\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1427}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 60575760

約数和(自身を除く): 31778900

約数列:

[1, 2, 4, 5, 10, 20, 1009, 1427, 2018, 2854, 4036, 5045, 5708, 7135, 10090, 14270, 20180, 28540, 1439843, 2879686, 5759372, 7199215, 14398430, 28796860]

約数ペア:

[(1, 28796860), (2, 14398430), (4, 7199215), (5, 5759372), (10, 2879686), (20, 1439843), (1009, 28540), (1427, 20180), (2018, 14270), (2854, 10090), (4036, 7135), (5045, 5708)]