1294242560

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:271

約数の個数: 216

約数和(自身を含む): 3483172224

約数和(自身を除く): 2188929664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 169, 193, 208, 248, 256, 260, 310, 320, 338, 386, 403, 416, 496, 520, 620, 640, 676, 772, 806, 832, 845, 965, 992, 1040, 1240, 1280, 1352, 1544, 1612, 1664, 1690, 1930, 1984, 2015, 2080, 2480, 2509, 2704, 3088, 3224, 3328, 3380, 3860, 3968, 4030, 4160, 4960, 5018, 5239, 5408, 5983, 6176, 6448, 6760, 7720, 7936, 8060, 8320, 9920, 10036, 10478, 10816, 11966, 12352, 12545, 12896, 13520, 15440, 16120, 16640, 19840, 20072, 20956, 21632, 23932, 24704, 25090, 25792, 26195, 27040, 29915, 30880, 32240, 32617, 39680, 40144, 41912, 43264, 47864, 49408, 50180, 51584, 52390, 54080, 59830, 61760, 64480, 65234, 77779, 80288, 83824, 95728, 100360, 103168, 104780, 108160, 119660, 123520, 128960, 130468, 155558, 160576, 163085, 167648, 191456, 200720, 209560, 216320, 239320, 247040, 257920, 260936, 311116, 321152, 326170, 335296, 382912, 388895, 401440, 419120, 478640, 515840, 521872, 622232, 642304, 652340, 670592, 765824, 777790, 802880, 838240, 957280, 1011127, 1043744, 1244464, 1304680, 1341184, 1531648, 1555580, 1605760, 1676480, 1914560, 2022254, 2087488, 2488928, 2609360, 3111160, 3211520, 3352960, 3829120, 4044508, 4174976, 4977856, 5055635, 5218720, 6222320, 6705920, 7658240, 8089016, 8349952, 9955712, 10111270, 10437440, 12444640, 16178032, 19911424, 20222540, 20874880, 24889280, 32356064, 40445080, 41749760, 49778560, 64712128, 80890160, 99557120, 129424256, 161780320, 258848512, 323560640, 647121280, 1294242560]

約数ペア:

[(1, 1294242560), (2, 647121280), (4, 323560640), (5, 258848512), (8, 161780320), (10, 129424256), (13, 99557120), (16, 80890160), (20, 64712128), (26, 49778560), (31, 41749760), (32, 40445080), (40, 32356064), (52, 24889280), (62, 20874880), (64, 20222540), (65, 19911424), (80, 16178032), (104, 12444640), (124, 10437440), (128, 10111270), (130, 9955712), (155, 8349952), (160, 8089016), (169, 7658240), (193, 6705920), (208, 6222320), (248, 5218720), (256, 5055635), (260, 4977856), (310, 4174976), (320, 4044508), (338, 3829120), (386, 3352960), (403, 3211520), (416, 3111160), (496, 2609360), (520, 2488928), (620, 2087488), (640, 2022254), (676, 1914560), (772, 1676480), (806, 1605760), (832, 1555580), (845, 1531648), (965, 1341184), (992, 1304680), (1040, 1244464), (1240, 1043744), (1280, 1011127), (1352, 957280), (1544, 838240), (1612, 802880), (1664, 777790), (1690, 765824), (1930, 670592), (1984, 652340), (2015, 642304), (2080, 622232), (2480, 521872), (2509, 515840), (2704, 478640), (3088, 419120), (3224, 401440), (3328, 388895), (3380, 382912), (3860, 335296), (3968, 326170), (4030, 321152), (4160, 311116), (4960, 260936), (5018, 257920), (5239, 247040), (5408, 239320), (5983, 216320), (6176, 209560), (6448, 200720), (6760, 191456), (7720, 167648), (7936, 163085), (8060, 160576), (8320, 155558), (9920, 130468), (10036, 128960), (10478, 123520), (10816, 119660), (11966, 108160), (12352, 104780), (12545, 103168), (12896, 100360), (13520, 95728), (15440, 83824), (16120, 80288), (16640, 77779), (19840, 65234), (20072, 64480), (20956, 61760), (21632, 59830), (23932, 54080), (24704, 52390), (25090, 51584), (25792, 50180), (26195, 49408), (27040, 47864), (29915, 43264), (30880, 41912), (32240, 40144), (32617, 39680)]