20646755760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{677387}}^1$

素因数の和:677530

約数の個数: 80

約数和(自身を含む): 64509014016

約数和(自身を除く): 43862258256

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, 7620, 10160, 15240, 30480, 677387, 1354774, 2032161, 2709548, 3386935, 4064322, 5419096, 6773870, 8128644, 10160805, 10838192, 13547740, 16257288, 20321610, 27095480, 32514576, 40643220, 54190960, 81286440, 86028149, 162572880, 172056298, 258084447, 344112596, 430140745, 516168894, 688225192, 860281490, 1032337788, 1290422235, 1376450384, 1720562980, 2064675576, 2580844470, 3441125960, 4129351152, 5161688940, 6882251920, 10323377880, 20646755760]

約数ペア:

[(1, 20646755760), (2, 10323377880), (3, 6882251920), (4, 5161688940), (5, 4129351152), (6, 3441125960), (8, 2580844470), (10, 2064675576), (12, 1720562980), (15, 1376450384), (16, 1290422235), (20, 1032337788), (24, 860281490), (30, 688225192), (40, 516168894), (48, 430140745), (60, 344112596), (80, 258084447), (120, 172056298), (127, 162572880), (240, 86028149), (254, 81286440), (381, 54190960), (508, 40643220), (635, 32514576), (762, 27095480), (1016, 20321610), (1270, 16257288), (1524, 13547740), (1905, 10838192), (2032, 10160805), (2540, 8128644), (3048, 6773870), (3810, 5419096), (5080, 4064322), (6096, 3386935), (7620, 2709548), (10160, 2032161), (15240, 1354774), (30480, 677387)]