19903228660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20309417}}^1$

素因数の和:20309440

約数の個数: 36

約数和(自身を含む): 48620746692

約数和(自身を除く): 28717518032

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20309417, 40618834, 81237668, 101547085, 142165919, 203094170, 284331838, 406188340, 568663676, 710829595, 995161433, 1421659190, 1990322866, 2843318380, 3980645732, 4975807165, 9951614330, 19903228660]

約数ペア:

[(1, 19903228660), (2, 9951614330), (4, 4975807165), (5, 3980645732), (7, 2843318380), (10, 1990322866), (14, 1421659190), (20, 995161433), (28, 710829595), (35, 568663676), (49, 406188340), (70, 284331838), (98, 203094170), (140, 142165919), (196, 101547085), (245, 81237668), (490, 40618834), (980, 20309417)]