8771920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 22320000

約数和(自身を除く): 13548080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 199, 232, 290, 304, 380, 398, 464, 551, 580, 760, 796, 995, 1102, 1160, 1520, 1592, 1990, 2204, 2320, 2755, 3184, 3781, 3980, 4408, 5510, 5771, 7562, 7960, 8816, 11020, 11542, 15124, 15920, 18905, 22040, 23084, 28855, 30248, 37810, 44080, 46168, 57710, 60496, 75620, 92336, 109649, 115420, 151240, 219298, 230840, 302480, 438596, 461680, 548245, 877192, 1096490, 1754384, 2192980, 4385960, 8771920]

約数ペア:

[(1, 8771920), (2, 4385960), (4, 2192980), (5, 1754384), (8, 1096490), (10, 877192), (16, 548245), (19, 461680), (20, 438596), (29, 302480), (38, 230840), (40, 219298), (58, 151240), (76, 115420), (80, 109649), (95, 92336), (116, 75620), (145, 60496), (152, 57710), (190, 46168), (199, 44080), (232, 37810), (290, 30248), (304, 28855), (380, 23084), (398, 22040), (464, 18905), (551, 15920), (580, 15124), (760, 11542), (796, 11020), (995, 8816), (1102, 7960), (1160, 7562), (1520, 5771), (1592, 5510), (1990, 4408), (2204, 3980), (2320, 3781), (2755, 3184)]