79743280

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{5009}}^1$

素因数の和:5221

約数の個数: 40

約数和(自身を含む): 186372000

約数和(自身を除く): 106628720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 5009, 7960, 10018, 15920, 20036, 25045, 40072, 50090, 80144, 100180, 200360, 400720, 996791, 1993582, 3987164, 4983955, 7974328, 9967910, 15948656, 19935820, 39871640, 79743280]

約数ペア:

[(1, 79743280), (2, 39871640), (4, 19935820), (5, 15948656), (8, 9967910), (10, 7974328), (16, 4983955), (20, 3987164), (40, 1993582), (80, 996791), (199, 400720), (398, 200360), (796, 100180), (995, 80144), (1592, 50090), (1990, 40072), (3184, 25045), (3980, 20036), (5009, 15920), (7960, 10018)]