2788660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19919}}^1$

素因数の和:19935

約数の個数: 24

約数和(自身を含む): 6693120

約数和(自身を除く): 3904460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 19919, 39838, 79676, 99595, 139433, 199190, 278866, 398380, 557732, 697165, 1394330, 2788660]

約数ペア:

[(1, 2788660), (2, 1394330), (4, 697165), (5, 557732), (7, 398380), (10, 278866), (14, 199190), (20, 139433), (28, 99595), (35, 79676), (70, 39838), (140, 19919)]