217291920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7129}}^1$

素因数の和:7272

約数の個数: 80

約数和(自身を含む): 679004160

約数和(自身を除く): 461712240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 762, 1016, 1270, 1524, 1905, 2032, 2540, 3048, 3810, 5080, 6096, 7129, 7620, 10160, 14258, 15240, 21387, 28516, 30480, 35645, 42774, 57032, 71290, 85548, 106935, 114064, 142580, 171096, 213870, 285160, 342192, 427740, 570320, 855480, 905383, 1710960, 1810766, 2716149, 3621532, 4526915, 5432298, 7243064, 9053830, 10864596, 13580745, 14486128, 18107660, 21729192, 27161490, 36215320, 43458384, 54322980, 72430640, 108645960, 217291920]

約数ペア:

[(1, 217291920), (2, 108645960), (3, 72430640), (4, 54322980), (5, 43458384), (6, 36215320), (8, 27161490), (10, 21729192), (12, 18107660), (15, 14486128), (16, 13580745), (20, 10864596), (24, 9053830), (30, 7243064), (40, 5432298), (48, 4526915), (60, 3621532), (80, 2716149), (120, 1810766), (127, 1710960), (240, 905383), (254, 855480), (381, 570320), (508, 427740), (635, 342192), (762, 285160), (1016, 213870), (1270, 171096), (1524, 142580), (1905, 114064), (2032, 106935), (2540, 85548), (3048, 71290), (3810, 57032), (5080, 42774), (6096, 35645), (7129, 30480), (7620, 28516), (10160, 21387), (14258, 15240)]