256538880

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:614

約数の個数: 288

約数和(自身を含む): 982101120

約数和(自身を除く): 725562240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 128, 130, 135, 144, 156, 160, 180, 192, 195, 208, 216, 234, 240, 256, 260, 270, 288, 312, 320, 351, 360, 384, 390, 416, 432, 468, 480, 520, 540, 571, 576, 585, 624, 640, 702, 720, 768, 780, 832, 864, 936, 960, 1040, 1080, 1142, 1152, 1170, 1248, 1280, 1404, 1440, 1560, 1664, 1713, 1728, 1755, 1872, 1920, 2080, 2160, 2284, 2304, 2340, 2496, 2808, 2855, 2880, 3120, 3328, 3426, 3456, 3510, 3744, 3840, 4160, 4320, 4568, 4680, 4992, 5139, 5616, 5710, 5760, 6240, 6852, 6912, 7020, 7423, 7488, 8320, 8565, 8640, 9136, 9360, 9984, 10278, 11232, 11420, 11520, 12480, 13704, 14040, 14846, 14976, 15417, 16640, 17130, 17280, 18272, 18720, 20556, 22269, 22464, 22840, 24960, 25695, 27408, 28080, 29692, 29952, 30834, 34260, 34560, 36544, 37115, 37440, 41112, 44538, 44928, 45680, 49920, 51390, 54816, 56160, 59384, 61668, 66807, 68520, 73088, 74230, 74880, 77085, 82224, 89076, 89856, 91360, 102780, 109632, 111345, 112320, 118768, 123336, 133614, 137040, 146176, 148460, 149760, 154170, 164448, 178152, 182720, 200421, 205560, 219264, 222690, 224640, 237536, 246672, 267228, 274080, 296920, 308340, 328896, 334035, 356304, 365440, 400842, 411120, 438528, 445380, 449280, 475072, 493344, 534456, 548160, 593840, 616680, 657792, 668070, 712608, 730880, 801684, 822240, 890760, 950144, 986688, 1002105, 1068912, 1096320, 1187680, 1233360, 1315584, 1336140, 1425216, 1603368, 1644480, 1781520, 1900288, 1973376, 2004210, 2137824, 2192640, 2375360, 2466720, 2672280, 2850432, 3206736, 3288960, 3563040, 3946752, 4008420, 4275648, 4750720, 4933440, 5344560, 5700864, 6413472, 6577920, 7126080, 8016840, 8551296, 9501440, 9866880, 10689120, 12826944, 14252160, 16033680, 17102592, 19733760, 21378240, 25653888, 28504320, 32067360, 42756480, 51307776, 64134720, 85512960, 128269440, 256538880]

約数ペア:

[(1, 256538880), (2, 128269440), (3, 85512960), (4, 64134720), (5, 51307776), (6, 42756480), (8, 32067360), (9, 28504320), (10, 25653888), (12, 21378240), (13, 19733760), (15, 17102592), (16, 16033680), (18, 14252160), (20, 12826944), (24, 10689120), (26, 9866880), (27, 9501440), (30, 8551296), (32, 8016840), (36, 7126080), (39, 6577920), (40, 6413472), (45, 5700864), (48, 5344560), (52, 4933440), (54, 4750720), (60, 4275648), (64, 4008420), (65, 3946752), (72, 3563040), (78, 3288960), (80, 3206736), (90, 2850432), (96, 2672280), (104, 2466720), (108, 2375360), (117, 2192640), (120, 2137824), (128, 2004210), (130, 1973376), (135, 1900288), (144, 1781520), (156, 1644480), (160, 1603368), (180, 1425216), (192, 1336140), (195, 1315584), (208, 1233360), (216, 1187680), (234, 1096320), (240, 1068912), (256, 1002105), (260, 986688), (270, 950144), (288, 890760), (312, 822240), (320, 801684), (351, 730880), (360, 712608), (384, 668070), (390, 657792), (416, 616680), (432, 593840), (468, 548160), (480, 534456), (520, 493344), (540, 475072), (571, 449280), (576, 445380), (585, 438528), (624, 411120), (640, 400842), (702, 365440), (720, 356304), (768, 334035), (780, 328896), (832, 308340), (864, 296920), (936, 274080), (960, 267228), (1040, 246672), (1080, 237536), (1142, 224640), (1152, 222690), (1170, 219264), (1248, 205560), (1280, 200421), (1404, 182720), (1440, 178152), (1560, 164448), (1664, 154170), (1713, 149760), (1728, 148460), (1755, 146176), (1872, 137040), (1920, 133614), (2080, 123336), (2160, 118768), (2284, 112320), (2304, 111345), (2340, 109632), (2496, 102780), (2808, 91360), (2855, 89856), (2880, 89076), (3120, 82224), (3328, 77085), (3426, 74880), (3456, 74230), (3510, 73088), (3744, 68520), (3840, 66807), (4160, 61668), (4320, 59384), (4568, 56160), (4680, 54816), (4992, 51390), (5139, 49920), (5616, 45680), (5710, 44928), (5760, 44538), (6240, 41112), (6852, 37440), (6912, 37115), (7020, 36544), (7423, 34560), (7488, 34260), (8320, 30834), (8565, 29952), (8640, 29692), (9136, 28080), (9360, 27408), (9984, 25695), (10278, 24960), (11232, 22840), (11420, 22464), (11520, 22269), (12480, 20556), (13704, 18720), (14040, 18272), (14846, 17280), (14976, 17130), (15417, 16640)]