20165052080

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1\times {\mathrm{8501}}^1$

素因数の和:8862

約数の個数: 80

約数和(自身を含む): 47441160000

約数和(自身を除く): 27276107920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 199, 298, 398, 596, 745, 796, 995, 1192, 1490, 1592, 1990, 2384, 2980, 3184, 3980, 5960, 7960, 8501, 11920, 15920, 17002, 29651, 34004, 42505, 59302, 68008, 85010, 118604, 136016, 148255, 170020, 237208, 296510, 340040, 474416, 593020, 680080, 1186040, 1266649, 1691699, 2372080, 2533298, 3383398, 5066596, 6333245, 6766796, 8458495, 10133192, 12666490, 13533592, 16916990, 20266384, 25332980, 27067184, 33833980, 50665960, 67667960, 101331920, 135335920, 252063151, 504126302, 1008252604, 1260315755, 2016505208, 2520631510, 4033010416, 5041263020, 10082526040, 20165052080]

約数ペア:

[(1, 20165052080), (2, 10082526040), (4, 5041263020), (5, 4033010416), (8, 2520631510), (10, 2016505208), (16, 1260315755), (20, 1008252604), (40, 504126302), (80, 252063151), (149, 135335920), (199, 101331920), (298, 67667960), (398, 50665960), (596, 33833980), (745, 27067184), (796, 25332980), (995, 20266384), (1192, 16916990), (1490, 13533592), (1592, 12666490), (1990, 10133192), (2384, 8458495), (2980, 6766796), (3184, 6333245), (3980, 5066596), (5960, 3383398), (7960, 2533298), (8501, 2372080), (11920, 1691699), (15920, 1266649), (17002, 1186040), (29651, 680080), (34004, 593020), (42505, 474416), (59302, 340040), (68008, 296510), (85010, 237208), (118604, 170020), (136016, 148255)]