981849856

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{307}}^1$

素因数の和:398

約数の個数: 108

約数和(自身を含む): 2188007976

約数和(自身を除く): 1206158120

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 307, 403, 416, 496, 614, 806, 832, 961, 992, 1228, 1612, 1664, 1922, 1984, 2456, 3224, 3328, 3844, 3968, 3991, 4912, 6448, 7688, 7936, 7982, 9517, 9824, 12493, 12896, 15376, 15964, 19034, 19648, 24986, 25792, 30752, 31928, 38068, 39296, 49972, 51584, 61504, 63856, 76136, 78592, 99944, 103168, 123008, 123721, 127712, 152272, 199888, 246016, 247442, 255424, 295027, 304544, 399776, 494884, 510848, 590054, 609088, 799552, 989768, 1021696, 1180108, 1218176, 1599104, 1979536, 2360216, 2436352, 3198208, 3835351, 3959072, 4720432, 7670702, 7918144, 9440864, 15341404, 15836288, 18881728, 30682808, 31672576, 37763456, 61365616, 75526912, 122731232, 245462464, 490924928, 981849856]

約数ペア:

[(1, 981849856), (2, 490924928), (4, 245462464), (8, 122731232), (13, 75526912), (16, 61365616), (26, 37763456), (31, 31672576), (32, 30682808), (52, 18881728), (62, 15836288), (64, 15341404), (104, 9440864), (124, 7918144), (128, 7670702), (208, 4720432), (248, 3959072), (256, 3835351), (307, 3198208), (403, 2436352), (416, 2360216), (496, 1979536), (614, 1599104), (806, 1218176), (832, 1180108), (961, 1021696), (992, 989768), (1228, 799552), (1612, 609088), (1664, 590054), (1922, 510848), (1984, 494884), (2456, 399776), (3224, 304544), (3328, 295027), (3844, 255424), (3968, 247442), (3991, 246016), (4912, 199888), (6448, 152272), (7688, 127712), (7936, 123721), (7982, 123008), (9517, 103168), (9824, 99944), (12493, 78592), (12896, 76136), (15376, 63856), (15964, 61504), (19034, 51584), (19648, 49972), (24986, 39296), (25792, 38068), (30752, 31928)]