257929728

素因数分解:

$2^9\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1$

素因数の和:207

約数の個数: 240

約数和(自身を含む): 839678400

約数和(自身を除く): 581748672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 49, 56, 64, 69, 84, 92, 96, 98, 112, 128, 138, 147, 149, 161, 168, 184, 192, 196, 224, 256, 276, 294, 298, 322, 336, 368, 384, 392, 447, 448, 483, 512, 552, 588, 596, 644, 672, 736, 768, 784, 894, 896, 966, 1043, 1104, 1127, 1176, 1192, 1288, 1344, 1472, 1536, 1568, 1788, 1792, 1932, 2086, 2208, 2254, 2352, 2384, 2576, 2688, 2944, 3129, 3136, 3381, 3427, 3576, 3584, 3864, 4172, 4416, 4508, 4704, 4768, 5152, 5376, 5888, 6258, 6272, 6762, 6854, 7152, 7301, 7728, 8344, 8832, 9016, 9408, 9536, 10281, 10304, 10752, 11776, 12516, 12544, 13524, 13708, 14304, 14602, 15456, 16688, 17664, 18032, 18816, 19072, 20562, 20608, 21903, 23989, 25032, 25088, 27048, 27416, 28608, 29204, 30912, 33376, 35328, 36064, 37632, 38144, 41124, 41216, 43806, 47978, 50064, 54096, 54832, 57216, 58408, 61824, 66752, 71967, 72128, 75264, 76288, 82248, 82432, 87612, 95956, 100128, 108192, 109664, 114432, 116816, 123648, 133504, 143934, 144256, 164496, 167923, 175224, 191912, 200256, 216384, 219328, 228864, 233632, 247296, 267008, 287868, 288512, 328992, 335846, 350448, 383824, 400512, 432768, 438656, 467264, 503769, 534016, 575736, 577024, 657984, 671692, 700896, 767648, 801024, 865536, 877312, 934528, 1007538, 1151472, 1315968, 1343384, 1401792, 1535296, 1602048, 1731072, 1754624, 1869056, 2015076, 2302944, 2631936, 2686768, 2803584, 3070592, 3738112, 4030152, 4605888, 5263872, 5373536, 5607168, 6141184, 8060304, 9211776, 10747072, 11214336, 12282368, 16120608, 18423552, 21494144, 32241216, 36847104, 42988288, 64482432, 85976576, 128964864, 257929728]

約数ペア:

[(1, 257929728), (2, 128964864), (3, 85976576), (4, 64482432), (6, 42988288), (7, 36847104), (8, 32241216), (12, 21494144), (14, 18423552), (16, 16120608), (21, 12282368), (23, 11214336), (24, 10747072), (28, 9211776), (32, 8060304), (42, 6141184), (46, 5607168), (48, 5373536), (49, 5263872), (56, 4605888), (64, 4030152), (69, 3738112), (84, 3070592), (92, 2803584), (96, 2686768), (98, 2631936), (112, 2302944), (128, 2015076), (138, 1869056), (147, 1754624), (149, 1731072), (161, 1602048), (168, 1535296), (184, 1401792), (192, 1343384), (196, 1315968), (224, 1151472), (256, 1007538), (276, 934528), (294, 877312), (298, 865536), (322, 801024), (336, 767648), (368, 700896), (384, 671692), (392, 657984), (447, 577024), (448, 575736), (483, 534016), (512, 503769), (552, 467264), (588, 438656), (596, 432768), (644, 400512), (672, 383824), (736, 350448), (768, 335846), (784, 328992), (894, 288512), (896, 287868), (966, 267008), (1043, 247296), (1104, 233632), (1127, 228864), (1176, 219328), (1192, 216384), (1288, 200256), (1344, 191912), (1472, 175224), (1536, 167923), (1568, 164496), (1788, 144256), (1792, 143934), (1932, 133504), (2086, 123648), (2208, 116816), (2254, 114432), (2352, 109664), (2384, 108192), (2576, 100128), (2688, 95956), (2944, 87612), (3129, 82432), (3136, 82248), (3381, 76288), (3427, 75264), (3576, 72128), (3584, 71967), (3864, 66752), (4172, 61824), (4416, 58408), (4508, 57216), (4704, 54832), (4768, 54096), (5152, 50064), (5376, 47978), (5888, 43806), (6258, 41216), (6272, 41124), (6762, 38144), (6854, 37632), (7152, 36064), (7301, 35328), (7728, 33376), (8344, 30912), (8832, 29204), (9016, 28608), (9408, 27416), (9536, 27048), (10281, 25088), (10304, 25032), (10752, 23989), (11776, 21903), (12516, 20608), (12544, 20562), (13524, 19072), (13708, 18816), (14304, 18032), (14602, 17664), (15456, 16688)]