256469760

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 288

約数和(自身を含む): 937460160

約数和(自身を除く): 680990400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 41, 45, 48, 54, 60, 64, 72, 80, 82, 90, 96, 108, 120, 123, 128, 135, 144, 160, 164, 180, 181, 192, 205, 216, 240, 246, 256, 270, 288, 320, 328, 360, 362, 369, 384, 410, 432, 480, 492, 540, 543, 576, 615, 640, 656, 720, 724, 738, 768, 820, 864, 905, 960, 984, 1080, 1086, 1107, 1152, 1230, 1280, 1312, 1440, 1448, 1476, 1629, 1640, 1728, 1810, 1845, 1920, 1968, 2160, 2172, 2214, 2304, 2460, 2624, 2715, 2880, 2896, 2952, 3258, 3280, 3456, 3620, 3690, 3840, 3936, 4320, 4344, 4428, 4887, 4920, 5248, 5430, 5535, 5760, 5792, 5904, 6516, 6560, 6912, 7240, 7380, 7421, 7872, 8145, 8640, 8688, 8856, 9774, 9840, 10496, 10860, 11070, 11520, 11584, 11808, 13032, 13120, 14480, 14760, 14842, 15744, 16290, 17280, 17376, 17712, 19548, 19680, 21720, 22140, 22263, 23168, 23616, 24435, 26064, 26240, 28960, 29520, 29684, 31488, 32580, 34560, 34752, 35424, 37105, 39096, 39360, 43440, 44280, 44526, 46336, 47232, 48870, 52128, 52480, 57920, 59040, 59368, 65160, 66789, 69504, 70848, 74210, 78192, 78720, 86880, 88560, 89052, 94464, 97740, 104256, 111315, 115840, 118080, 118736, 130320, 133578, 139008, 141696, 148420, 156384, 157440, 173760, 177120, 178104, 195480, 200367, 208512, 222630, 231680, 236160, 237472, 260640, 267156, 283392, 296840, 312768, 333945, 347520, 354240, 356208, 390960, 400734, 417024, 445260, 472320, 474944, 521280, 534312, 593680, 625536, 667890, 695040, 708480, 712416, 781920, 801468, 890520, 949888, 1001835, 1042560, 1068624, 1187360, 1251072, 1335780, 1416960, 1424832, 1563840, 1602936, 1781040, 1899776, 2003670, 2085120, 2137248, 2374720, 2671560, 2849664, 3127680, 3205872, 3562080, 4007340, 4274496, 4749440, 5343120, 5699328, 6255360, 6411744, 7124160, 8014680, 8548992, 9498880, 10686240, 12823488, 14248320, 16029360, 17097984, 21372480, 25646976, 28496640, 32058720, 42744960, 51293952, 64117440, 85489920, 128234880, 256469760]

約数ペア:

[(1, 256469760), (2, 128234880), (3, 85489920), (4, 64117440), (5, 51293952), (6, 42744960), (8, 32058720), (9, 28496640), (10, 25646976), (12, 21372480), (15, 17097984), (16, 16029360), (18, 14248320), (20, 12823488), (24, 10686240), (27, 9498880), (30, 8548992), (32, 8014680), (36, 7124160), (40, 6411744), (41, 6255360), (45, 5699328), (48, 5343120), (54, 4749440), (60, 4274496), (64, 4007340), (72, 3562080), (80, 3205872), (82, 3127680), (90, 2849664), (96, 2671560), (108, 2374720), (120, 2137248), (123, 2085120), (128, 2003670), (135, 1899776), (144, 1781040), (160, 1602936), (164, 1563840), (180, 1424832), (181, 1416960), (192, 1335780), (205, 1251072), (216, 1187360), (240, 1068624), (246, 1042560), (256, 1001835), (270, 949888), (288, 890520), (320, 801468), (328, 781920), (360, 712416), (362, 708480), (369, 695040), (384, 667890), (410, 625536), (432, 593680), (480, 534312), (492, 521280), (540, 474944), (543, 472320), (576, 445260), (615, 417024), (640, 400734), (656, 390960), (720, 356208), (724, 354240), (738, 347520), (768, 333945), (820, 312768), (864, 296840), (905, 283392), (960, 267156), (984, 260640), (1080, 237472), (1086, 236160), (1107, 231680), (1152, 222630), (1230, 208512), (1280, 200367), (1312, 195480), (1440, 178104), (1448, 177120), (1476, 173760), (1629, 157440), (1640, 156384), (1728, 148420), (1810, 141696), (1845, 139008), (1920, 133578), (1968, 130320), (2160, 118736), (2172, 118080), (2214, 115840), (2304, 111315), (2460, 104256), (2624, 97740), (2715, 94464), (2880, 89052), (2896, 88560), (2952, 86880), (3258, 78720), (3280, 78192), (3456, 74210), (3620, 70848), (3690, 69504), (3840, 66789), (3936, 65160), (4320, 59368), (4344, 59040), (4428, 57920), (4887, 52480), (4920, 52128), (5248, 48870), (5430, 47232), (5535, 46336), (5760, 44526), (5792, 44280), (5904, 43440), (6516, 39360), (6560, 39096), (6912, 37105), (7240, 35424), (7380, 34752), (7421, 34560), (7872, 32580), (8145, 31488), (8640, 29684), (8688, 29520), (8856, 28960), (9774, 26240), (9840, 26064), (10496, 24435), (10860, 23616), (11070, 23168), (11520, 22263), (11584, 22140), (11808, 21720), (13032, 19680), (13120, 19548), (14480, 17712), (14760, 17376), (14842, 17280), (15744, 16290)]