257246080

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{631}}^1$

素因数の和:677

約数の個数: 192

約数和(自身を含む): 771634080

約数和(自身を除く): 514388000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 320, 364, 392, 416, 448, 455, 490, 520, 560, 631, 637, 640, 728, 784, 832, 896, 910, 980, 1040, 1120, 1262, 1274, 1456, 1568, 1664, 1820, 1960, 2080, 2240, 2524, 2548, 2912, 3136, 3155, 3185, 3640, 3920, 4160, 4417, 4480, 5048, 5096, 5824, 6272, 6310, 6370, 7280, 7840, 8203, 8320, 8834, 10096, 10192, 11648, 12620, 12740, 14560, 15680, 16406, 17668, 20192, 20384, 22085, 25240, 25480, 29120, 30919, 31360, 32812, 35336, 40384, 40768, 41015, 44170, 50480, 50960, 57421, 58240, 61838, 65624, 70672, 80768, 81536, 82030, 88340, 100960, 101920, 114842, 123676, 131248, 141344, 154595, 164060, 176680, 201920, 203840, 229684, 247352, 262496, 282688, 287105, 309190, 328120, 353360, 401947, 403840, 407680, 459368, 494704, 524992, 565376, 574210, 618380, 656240, 706720, 803894, 918736, 989408, 1049984, 1148420, 1236760, 1312480, 1413440, 1607788, 1837472, 1978816, 2009735, 2296840, 2473520, 2624960, 2826880, 3215576, 3674944, 3957632, 4019470, 4593680, 4947040, 5249920, 6431152, 7349888, 8038940, 9187360, 9894080, 12862304, 16077880, 18374720, 19788160, 25724608, 32155760, 36749440, 51449216, 64311520, 128623040, 257246080]

約数ペア:

[(1, 257246080), (2, 128623040), (4, 64311520), (5, 51449216), (7, 36749440), (8, 32155760), (10, 25724608), (13, 19788160), (14, 18374720), (16, 16077880), (20, 12862304), (26, 9894080), (28, 9187360), (32, 8038940), (35, 7349888), (40, 6431152), (49, 5249920), (52, 4947040), (56, 4593680), (64, 4019470), (65, 3957632), (70, 3674944), (80, 3215576), (91, 2826880), (98, 2624960), (104, 2473520), (112, 2296840), (128, 2009735), (130, 1978816), (140, 1837472), (160, 1607788), (182, 1413440), (196, 1312480), (208, 1236760), (224, 1148420), (245, 1049984), (260, 989408), (280, 918736), (320, 803894), (364, 706720), (392, 656240), (416, 618380), (448, 574210), (455, 565376), (490, 524992), (520, 494704), (560, 459368), (631, 407680), (637, 403840), (640, 401947), (728, 353360), (784, 328120), (832, 309190), (896, 287105), (910, 282688), (980, 262496), (1040, 247352), (1120, 229684), (1262, 203840), (1274, 201920), (1456, 176680), (1568, 164060), (1664, 154595), (1820, 141344), (1960, 131248), (2080, 123676), (2240, 114842), (2524, 101920), (2548, 100960), (2912, 88340), (3136, 82030), (3155, 81536), (3185, 80768), (3640, 70672), (3920, 65624), (4160, 61838), (4417, 58240), (4480, 57421), (5048, 50960), (5096, 50480), (5824, 44170), (6272, 41015), (6310, 40768), (6370, 40384), (7280, 35336), (7840, 32812), (8203, 31360), (8320, 30919), (8834, 29120), (10096, 25480), (10192, 25240), (11648, 22085), (12620, 20384), (12740, 20192), (14560, 17668), (15680, 16406)]