254768640

素因数分解:

$2^9\times 3^1\times 5^1\times 7^2\times {\mathrm{677}}^1$

素因数の和:717

約数の個数: 240

約数和(自身を含む): 948836592

約数和(自身を除く): 694067952

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 512, 560, 588, 640, 672, 677, 735, 768, 784, 840, 896, 960, 980, 1120, 1176, 1280, 1344, 1354, 1470, 1536, 1568, 1680, 1792, 1920, 1960, 2031, 2240, 2352, 2560, 2688, 2708, 2940, 3136, 3360, 3385, 3584, 3840, 3920, 4062, 4480, 4704, 4739, 5376, 5416, 5880, 6272, 6720, 6770, 7680, 7840, 8124, 8960, 9408, 9478, 10155, 10752, 10832, 11760, 12544, 13440, 13540, 14217, 15680, 16248, 17920, 18816, 18956, 20310, 21664, 23520, 23695, 25088, 26880, 27080, 28434, 31360, 32496, 33173, 37632, 37912, 40620, 43328, 47040, 47390, 53760, 54160, 56868, 62720, 64992, 66346, 71085, 75264, 75824, 81240, 86656, 94080, 94780, 99519, 108320, 113736, 125440, 129984, 132692, 142170, 151648, 162480, 165865, 173312, 188160, 189560, 199038, 216640, 227472, 259968, 265384, 284340, 303296, 324960, 331730, 346624, 376320, 379120, 398076, 433280, 454944, 497595, 519936, 530768, 568680, 606592, 649920, 663460, 758240, 796152, 866560, 909888, 995190, 1039872, 1061536, 1137360, 1213184, 1299840, 1326920, 1516480, 1592304, 1733120, 1819776, 1990380, 2123072, 2274720, 2426368, 2599680, 2653840, 3032960, 3184608, 3639552, 3980760, 4246144, 4549440, 5199360, 5307680, 6065920, 6369216, 7279104, 7961520, 8492288, 9098880, 10615360, 12131840, 12738432, 15923040, 16984576, 18197760, 21230720, 25476864, 31846080, 36395520, 42461440, 50953728, 63692160, 84922880, 127384320, 254768640]

約数ペア:

[(1, 254768640), (2, 127384320), (3, 84922880), (4, 63692160), (5, 50953728), (6, 42461440), (7, 36395520), (8, 31846080), (10, 25476864), (12, 21230720), (14, 18197760), (15, 16984576), (16, 15923040), (20, 12738432), (21, 12131840), (24, 10615360), (28, 9098880), (30, 8492288), (32, 7961520), (35, 7279104), (40, 6369216), (42, 6065920), (48, 5307680), (49, 5199360), (56, 4549440), (60, 4246144), (64, 3980760), (70, 3639552), (80, 3184608), (84, 3032960), (96, 2653840), (98, 2599680), (105, 2426368), (112, 2274720), (120, 2123072), (128, 1990380), (140, 1819776), (147, 1733120), (160, 1592304), (168, 1516480), (192, 1326920), (196, 1299840), (210, 1213184), (224, 1137360), (240, 1061536), (245, 1039872), (256, 995190), (280, 909888), (294, 866560), (320, 796152), (336, 758240), (384, 663460), (392, 649920), (420, 606592), (448, 568680), (480, 530768), (490, 519936), (512, 497595), (560, 454944), (588, 433280), (640, 398076), (672, 379120), (677, 376320), (735, 346624), (768, 331730), (784, 324960), (840, 303296), (896, 284340), (960, 265384), (980, 259968), (1120, 227472), (1176, 216640), (1280, 199038), (1344, 189560), (1354, 188160), (1470, 173312), (1536, 165865), (1568, 162480), (1680, 151648), (1792, 142170), (1920, 132692), (1960, 129984), (2031, 125440), (2240, 113736), (2352, 108320), (2560, 99519), (2688, 94780), (2708, 94080), (2940, 86656), (3136, 81240), (3360, 75824), (3385, 75264), (3584, 71085), (3840, 66346), (3920, 64992), (4062, 62720), (4480, 56868), (4704, 54160), (4739, 53760), (5376, 47390), (5416, 47040), (5880, 43328), (6272, 40620), (6720, 37912), (6770, 37632), (7680, 33173), (7840, 32496), (8124, 31360), (8960, 28434), (9408, 27080), (9478, 26880), (10155, 25088), (10752, 23695), (10832, 23520), (11760, 21664), (12544, 20310), (13440, 18956), (13540, 18816), (14217, 17920), (15680, 16248)]