256014720

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:314

約数の個数: 288

約数和(自身を含む): 960925680

約数和(自身を除く): 704910960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 169, 180, 192, 195, 208, 234, 240, 260, 263, 288, 312, 320, 338, 360, 384, 390, 416, 468, 480, 507, 520, 526, 576, 585, 624, 640, 676, 720, 780, 789, 832, 845, 936, 960, 1014, 1040, 1052, 1152, 1170, 1248, 1315, 1352, 1440, 1521, 1560, 1578, 1664, 1690, 1872, 1920, 2028, 2080, 2104, 2340, 2367, 2496, 2535, 2630, 2704, 2880, 3042, 3120, 3156, 3380, 3419, 3744, 3945, 4056, 4160, 4208, 4680, 4734, 4992, 5070, 5260, 5408, 5760, 6084, 6240, 6312, 6760, 6838, 7488, 7605, 7890, 8112, 8320, 8416, 9360, 9468, 10140, 10257, 10520, 10816, 11835, 12168, 12480, 12624, 13520, 13676, 14976, 15210, 15780, 16224, 16832, 17095, 18720, 18936, 20280, 20514, 21040, 21632, 23670, 24336, 24960, 25248, 27040, 27352, 30420, 30771, 31560, 32448, 33664, 34190, 37440, 37872, 40560, 41028, 42080, 44447, 47340, 48672, 50496, 51285, 54080, 54704, 60840, 61542, 63120, 64896, 68380, 74880, 75744, 81120, 82056, 84160, 88894, 94680, 97344, 100992, 102570, 108160, 109408, 121680, 123084, 126240, 133341, 136760, 151488, 153855, 162240, 164112, 168320, 177788, 189360, 194688, 205140, 218816, 222235, 243360, 246168, 252480, 266682, 273520, 302976, 307710, 324480, 328224, 355576, 378720, 400023, 410280, 437632, 444470, 486720, 492336, 504960, 533364, 547040, 615420, 656448, 666705, 711152, 757440, 800046, 820560, 888940, 973440, 984672, 1066728, 1094080, 1230840, 1312896, 1333410, 1422304, 1514880, 1600092, 1641120, 1777880, 1969344, 2000115, 2133456, 2188160, 2461680, 2666820, 2844608, 3200184, 3282240, 3555760, 3938688, 4000230, 4266912, 4923360, 5333640, 5689216, 6400368, 6564480, 7111520, 8000460, 8533824, 9846720, 10667280, 12800736, 14223040, 16000920, 17067648, 19693440, 21334560, 25601472, 28446080, 32001840, 42669120, 51202944, 64003680, 85338240, 128007360, 256014720]

約数ペア:

[(1, 256014720), (2, 128007360), (3, 85338240), (4, 64003680), (5, 51202944), (6, 42669120), (8, 32001840), (9, 28446080), (10, 25601472), (12, 21334560), (13, 19693440), (15, 17067648), (16, 16000920), (18, 14223040), (20, 12800736), (24, 10667280), (26, 9846720), (30, 8533824), (32, 8000460), (36, 7111520), (39, 6564480), (40, 6400368), (45, 5689216), (48, 5333640), (52, 4923360), (60, 4266912), (64, 4000230), (65, 3938688), (72, 3555760), (78, 3282240), (80, 3200184), (90, 2844608), (96, 2666820), (104, 2461680), (117, 2188160), (120, 2133456), (128, 2000115), (130, 1969344), (144, 1777880), (156, 1641120), (160, 1600092), (169, 1514880), (180, 1422304), (192, 1333410), (195, 1312896), (208, 1230840), (234, 1094080), (240, 1066728), (260, 984672), (263, 973440), (288, 888940), (312, 820560), (320, 800046), (338, 757440), (360, 711152), (384, 666705), (390, 656448), (416, 615420), (468, 547040), (480, 533364), (507, 504960), (520, 492336), (526, 486720), (576, 444470), (585, 437632), (624, 410280), (640, 400023), (676, 378720), (720, 355576), (780, 328224), (789, 324480), (832, 307710), (845, 302976), (936, 273520), (960, 266682), (1014, 252480), (1040, 246168), (1052, 243360), (1152, 222235), (1170, 218816), (1248, 205140), (1315, 194688), (1352, 189360), (1440, 177788), (1521, 168320), (1560, 164112), (1578, 162240), (1664, 153855), (1690, 151488), (1872, 136760), (1920, 133341), (2028, 126240), (2080, 123084), (2104, 121680), (2340, 109408), (2367, 108160), (2496, 102570), (2535, 100992), (2630, 97344), (2704, 94680), (2880, 88894), (3042, 84160), (3120, 82056), (3156, 81120), (3380, 75744), (3419, 74880), (3744, 68380), (3945, 64896), (4056, 63120), (4160, 61542), (4208, 60840), (4680, 54704), (4734, 54080), (4992, 51285), (5070, 50496), (5260, 48672), (5408, 47340), (5760, 44447), (6084, 42080), (6240, 41028), (6312, 40560), (6760, 37872), (6838, 37440), (7488, 34190), (7605, 33664), (7890, 32448), (8112, 31560), (8320, 30771), (8416, 30420), (9360, 27352), (9468, 27040), (10140, 25248), (10257, 24960), (10520, 24336), (10816, 23670), (11835, 21632), (12168, 21040), (12480, 20514), (12624, 20280), (13520, 18936), (13676, 18720), (14976, 17095), (15210, 16832), (15780, 16224)]