987631232

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^3\times {\mathrm{37}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 2386375680

約数和(自身を除く): 1398744448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 37, 56, 62, 64, 74, 112, 124, 128, 148, 217, 224, 248, 259, 296, 434, 448, 496, 518, 592, 868, 896, 961, 992, 1036, 1147, 1184, 1736, 1922, 1984, 2072, 2294, 2368, 3472, 3844, 3968, 4144, 4588, 4736, 6727, 6944, 7688, 8029, 8288, 9176, 13454, 13888, 15376, 16058, 16576, 18352, 26908, 27776, 29791, 30752, 32116, 33152, 35557, 36704, 53816, 59582, 61504, 64232, 71114, 73408, 107632, 119164, 123008, 128464, 142228, 146816, 208537, 215264, 238328, 248899, 256928, 284456, 417074, 430528, 476656, 497798, 513856, 568912, 834148, 861056, 953312, 995596, 1027712, 1102267, 1137824, 1668296, 1906624, 1991192, 2204534, 2275648, 3336592, 3813248, 3982384, 4409068, 4551296, 6673184, 7715869, 7964768, 8818136, 13346368, 15431738, 15929536, 17636272, 26692736, 30863476, 31859072, 35272544, 61726952, 70545088, 123453904, 141090176, 246907808, 493815616, 987631232]

約数ペア:

[(1, 987631232), (2, 493815616), (4, 246907808), (7, 141090176), (8, 123453904), (14, 70545088), (16, 61726952), (28, 35272544), (31, 31859072), (32, 30863476), (37, 26692736), (56, 17636272), (62, 15929536), (64, 15431738), (74, 13346368), (112, 8818136), (124, 7964768), (128, 7715869), (148, 6673184), (217, 4551296), (224, 4409068), (248, 3982384), (259, 3813248), (296, 3336592), (434, 2275648), (448, 2204534), (496, 1991192), (518, 1906624), (592, 1668296), (868, 1137824), (896, 1102267), (961, 1027712), (992, 995596), (1036, 953312), (1147, 861056), (1184, 834148), (1736, 568912), (1922, 513856), (1984, 497798), (2072, 476656), (2294, 430528), (2368, 417074), (3472, 284456), (3844, 256928), (3968, 248899), (4144, 238328), (4588, 215264), (4736, 208537), (6727, 146816), (6944, 142228), (7688, 128464), (8029, 123008), (8288, 119164), (9176, 107632), (13454, 73408), (13888, 71114), (15376, 64232), (16058, 61504), (16576, 59582), (18352, 53816), (26908, 36704), (27776, 35557), (29791, 33152), (30752, 32116)]