256547520

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1340

約数の個数: 224

約数和(自身を含む): 945123840

約数和(自身を除く): 688576320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 64, 69, 72, 80, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 180, 184, 192, 207, 216, 230, 240, 270, 276, 288, 320, 345, 360, 368, 414, 432, 460, 480, 540, 552, 576, 621, 690, 720, 736, 828, 864, 920, 960, 1035, 1080, 1104, 1242, 1291, 1380, 1440, 1472, 1656, 1728, 1840, 2070, 2160, 2208, 2484, 2582, 2760, 2880, 3105, 3312, 3680, 3873, 4140, 4320, 4416, 4968, 5164, 5520, 6210, 6455, 6624, 7360, 7746, 8280, 8640, 9936, 10328, 11040, 11619, 12420, 12910, 13248, 15492, 16560, 19365, 19872, 20656, 22080, 23238, 24840, 25820, 29693, 30984, 33120, 34857, 38730, 39744, 41312, 46476, 49680, 51640, 58095, 59386, 61968, 66240, 69714, 77460, 82624, 89079, 92952, 99360, 103280, 116190, 118772, 123936, 139428, 148465, 154920, 174285, 178158, 185904, 198720, 206560, 232380, 237544, 247872, 267237, 278856, 296930, 309840, 348570, 356316, 371808, 413120, 445395, 464760, 475088, 534474, 557712, 593860, 619680, 697140, 712632, 743616, 801711, 890790, 929520, 950176, 1068948, 1115424, 1187720, 1239360, 1336185, 1394280, 1425264, 1603422, 1781580, 1859040, 1900352, 2137896, 2230848, 2375440, 2672370, 2788560, 2850528, 3206844, 3563160, 3718080, 4008555, 4275792, 4750880, 5344740, 5577120, 5701056, 6413688, 7126320, 8017110, 8551584, 9501760, 10689480, 11154240, 12827376, 14252640, 16034220, 17103168, 21378960, 25654752, 28505280, 32068440, 42757920, 51309504, 64136880, 85515840, 128273760, 256547520]

約数ペア:

[(1, 256547520), (2, 128273760), (3, 85515840), (4, 64136880), (5, 51309504), (6, 42757920), (8, 32068440), (9, 28505280), (10, 25654752), (12, 21378960), (15, 17103168), (16, 16034220), (18, 14252640), (20, 12827376), (23, 11154240), (24, 10689480), (27, 9501760), (30, 8551584), (32, 8017110), (36, 7126320), (40, 6413688), (45, 5701056), (46, 5577120), (48, 5344740), (54, 4750880), (60, 4275792), (64, 4008555), (69, 3718080), (72, 3563160), (80, 3206844), (90, 2850528), (92, 2788560), (96, 2672370), (108, 2375440), (115, 2230848), (120, 2137896), (135, 1900352), (138, 1859040), (144, 1781580), (160, 1603422), (180, 1425264), (184, 1394280), (192, 1336185), (207, 1239360), (216, 1187720), (230, 1115424), (240, 1068948), (270, 950176), (276, 929520), (288, 890790), (320, 801711), (345, 743616), (360, 712632), (368, 697140), (414, 619680), (432, 593860), (460, 557712), (480, 534474), (540, 475088), (552, 464760), (576, 445395), (621, 413120), (690, 371808), (720, 356316), (736, 348570), (828, 309840), (864, 296930), (920, 278856), (960, 267237), (1035, 247872), (1080, 237544), (1104, 232380), (1242, 206560), (1291, 198720), (1380, 185904), (1440, 178158), (1472, 174285), (1656, 154920), (1728, 148465), (1840, 139428), (2070, 123936), (2160, 118772), (2208, 116190), (2484, 103280), (2582, 99360), (2760, 92952), (2880, 89079), (3105, 82624), (3312, 77460), (3680, 69714), (3873, 66240), (4140, 61968), (4320, 59386), (4416, 58095), (4968, 51640), (5164, 49680), (5520, 46476), (6210, 41312), (6455, 39744), (6624, 38730), (7360, 34857), (7746, 33120), (8280, 30984), (8640, 29693), (9936, 25820), (10328, 24840), (11040, 23238), (11619, 22080), (12420, 20656), (12910, 19872), (13248, 19365), (15492, 16560)]