256518080

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:443

約数の個数: 224

約数和(自身を含む): 786530304

約数和(自身を除く): 530012224

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 23, 26, 28, 32, 35, 40, 46, 52, 56, 64, 65, 70, 80, 91, 92, 104, 112, 115, 130, 140, 160, 161, 182, 184, 208, 224, 230, 260, 280, 299, 320, 322, 364, 368, 383, 416, 448, 455, 460, 520, 560, 598, 644, 728, 736, 766, 805, 832, 910, 920, 1040, 1120, 1196, 1288, 1456, 1472, 1495, 1532, 1610, 1820, 1840, 1915, 2080, 2093, 2240, 2392, 2576, 2681, 2912, 2990, 3064, 3220, 3640, 3680, 3830, 4160, 4186, 4784, 4979, 5152, 5362, 5824, 5980, 6128, 6440, 7280, 7360, 7660, 8372, 8809, 9568, 9958, 10304, 10465, 10724, 11960, 12256, 12880, 13405, 14560, 15320, 16744, 17618, 19136, 19916, 20930, 21448, 23920, 24512, 24895, 25760, 26810, 29120, 30640, 33488, 34853, 35236, 39832, 41860, 42896, 44045, 47840, 49790, 51520, 53620, 61280, 61663, 66976, 69706, 70472, 79664, 83720, 85792, 88090, 95680, 99580, 107240, 114517, 122560, 123326, 133952, 139412, 140944, 159328, 167440, 171584, 174265, 176180, 199160, 214480, 229034, 246652, 278824, 281888, 308315, 318656, 334880, 348530, 352360, 398320, 428960, 458068, 493304, 557648, 563776, 572585, 616630, 669760, 697060, 704720, 796640, 801619, 857920, 916136, 986608, 1115296, 1145170, 1233260, 1394120, 1409440, 1593280, 1603238, 1832272, 1973216, 2230592, 2290340, 2466520, 2788240, 2818880, 3206476, 3664544, 3946432, 4008095, 4580680, 4933040, 5576480, 6412952, 7329088, 8016190, 9161360, 9866080, 11152960, 12825904, 16032380, 18322720, 19732160, 25651808, 32064760, 36645440, 51303616, 64129520, 128259040, 256518080]

約数ペア:

[(1, 256518080), (2, 128259040), (4, 64129520), (5, 51303616), (7, 36645440), (8, 32064760), (10, 25651808), (13, 19732160), (14, 18322720), (16, 16032380), (20, 12825904), (23, 11152960), (26, 9866080), (28, 9161360), (32, 8016190), (35, 7329088), (40, 6412952), (46, 5576480), (52, 4933040), (56, 4580680), (64, 4008095), (65, 3946432), (70, 3664544), (80, 3206476), (91, 2818880), (92, 2788240), (104, 2466520), (112, 2290340), (115, 2230592), (130, 1973216), (140, 1832272), (160, 1603238), (161, 1593280), (182, 1409440), (184, 1394120), (208, 1233260), (224, 1145170), (230, 1115296), (260, 986608), (280, 916136), (299, 857920), (320, 801619), (322, 796640), (364, 704720), (368, 697060), (383, 669760), (416, 616630), (448, 572585), (455, 563776), (460, 557648), (520, 493304), (560, 458068), (598, 428960), (644, 398320), (728, 352360), (736, 348530), (766, 334880), (805, 318656), (832, 308315), (910, 281888), (920, 278824), (1040, 246652), (1120, 229034), (1196, 214480), (1288, 199160), (1456, 176180), (1472, 174265), (1495, 171584), (1532, 167440), (1610, 159328), (1820, 140944), (1840, 139412), (1915, 133952), (2080, 123326), (2093, 122560), (2240, 114517), (2392, 107240), (2576, 99580), (2681, 95680), (2912, 88090), (2990, 85792), (3064, 83720), (3220, 79664), (3640, 70472), (3680, 69706), (3830, 66976), (4160, 61663), (4186, 61280), (4784, 53620), (4979, 51520), (5152, 49790), (5362, 47840), (5824, 44045), (5980, 42896), (6128, 41860), (6440, 39832), (7280, 35236), (7360, 34853), (7660, 33488), (8372, 30640), (8809, 29120), (9568, 26810), (9958, 25760), (10304, 24895), (10465, 24512), (10724, 23920), (11960, 21448), (12256, 20930), (12880, 19916), (13405, 19136), (14560, 17618), (15320, 16744)]