20172849440

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{18307}}^1$

素因数の和:18490

約数の個数: 96

約数和(自身を含む): 48830511744

約数和(自身を除く): 28657662304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 97, 142, 160, 194, 284, 355, 388, 485, 568, 710, 776, 970, 1136, 1420, 1552, 1940, 2272, 2840, 3104, 3880, 5680, 6887, 7760, 11360, 13774, 15520, 18307, 27548, 34435, 36614, 55096, 68870, 73228, 91535, 110192, 137740, 146456, 183070, 220384, 275480, 292912, 366140, 550960, 585824, 732280, 1101920, 1299797, 1464560, 1775779, 2599594, 2929120, 3551558, 5199188, 6498985, 7103116, 8878895, 10398376, 12997970, 14206232, 17757790, 20796752, 25995940, 28412464, 35515580, 41593504, 51991880, 56824928, 71031160, 103983760, 126080309, 142062320, 207967520, 252160618, 284124640, 504321236, 630401545, 1008642472, 1260803090, 2017284944, 2521606180, 4034569888, 5043212360, 10086424720, 20172849440]

約数ペア:

[(1, 20172849440), (2, 10086424720), (4, 5043212360), (5, 4034569888), (8, 2521606180), (10, 2017284944), (16, 1260803090), (20, 1008642472), (32, 630401545), (40, 504321236), (71, 284124640), (80, 252160618), (97, 207967520), (142, 142062320), (160, 126080309), (194, 103983760), (284, 71031160), (355, 56824928), (388, 51991880), (485, 41593504), (568, 35515580), (710, 28412464), (776, 25995940), (970, 20796752), (1136, 17757790), (1420, 14206232), (1552, 12997970), (1940, 10398376), (2272, 8878895), (2840, 7103116), (3104, 6498985), (3880, 5199188), (5680, 3551558), (6887, 2929120), (7760, 2599594), (11360, 1775779), (13774, 1464560), (15520, 1299797), (18307, 1101920), (27548, 732280), (34435, 585824), (36614, 550960), (55096, 366140), (68870, 292912), (73228, 275480), (91535, 220384), (110192, 183070), (137740, 146456)]