256289280

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:207

約数の個数: 320

約数和(自身を含む): 940439808

約数和(自身を除く): 684150528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 64, 65, 68, 78, 80, 85, 96, 102, 104, 120, 128, 130, 136, 151, 156, 160, 170, 192, 195, 204, 208, 221, 240, 255, 256, 260, 272, 302, 312, 320, 340, 384, 390, 408, 416, 442, 453, 480, 510, 512, 520, 544, 604, 624, 640, 663, 680, 755, 768, 780, 816, 832, 884, 906, 960, 1020, 1040, 1088, 1105, 1208, 1248, 1280, 1326, 1360, 1510, 1536, 1560, 1632, 1664, 1768, 1812, 1920, 1963, 2040, 2080, 2176, 2210, 2265, 2416, 2496, 2560, 2567, 2652, 2720, 3020, 3120, 3264, 3315, 3328, 3536, 3624, 3840, 3926, 4080, 4160, 4352, 4420, 4530, 4832, 4992, 5134, 5304, 5440, 5889, 6040, 6240, 6528, 6630, 6656, 7072, 7248, 7680, 7701, 7852, 8160, 8320, 8704, 8840, 9060, 9664, 9815, 9984, 10268, 10608, 10880, 11778, 12080, 12480, 12835, 13056, 13260, 14144, 14496, 15402, 15704, 16320, 16640, 17680, 18120, 19328, 19630, 19968, 20536, 21216, 21760, 23556, 24160, 24960, 25670, 26112, 26520, 28288, 28992, 29445, 30804, 31408, 32640, 33280, 33371, 35360, 36240, 38505, 38656, 39260, 41072, 42432, 43520, 47112, 48320, 49920, 51340, 53040, 56576, 57984, 58890, 61608, 62816, 65280, 66742, 70720, 72480, 77010, 77312, 78520, 82144, 84864, 94224, 96640, 99840, 100113, 102680, 106080, 113152, 115968, 117780, 123216, 125632, 130560, 133484, 141440, 144960, 154020, 157040, 164288, 166855, 169728, 188448, 193280, 200226, 205360, 212160, 231936, 235560, 246432, 251264, 266968, 282880, 289920, 308040, 314080, 328576, 333710, 339456, 376896, 386560, 400452, 410720, 424320, 471120, 492864, 500565, 502528, 533936, 565760, 579840, 616080, 628160, 657152, 667420, 753792, 800904, 821440, 848640, 942240, 985728, 1001130, 1005056, 1067872, 1159680, 1232160, 1256320, 1314304, 1334840, 1507584, 1601808, 1642880, 1697280, 1884480, 1971456, 2002260, 2135744, 2464320, 2512640, 2669680, 3015168, 3203616, 3285760, 3768960, 3942912, 4004520, 4271488, 4928640, 5025280, 5339360, 6407232, 6571520, 7537920, 8009040, 8542976, 9857280, 10678720, 12814464, 15075840, 16018080, 17085952, 19714560, 21357440, 25628928, 32036160, 42714880, 51257856, 64072320, 85429760, 128144640, 256289280]

約数ペア:

[(1, 256289280), (2, 128144640), (3, 85429760), (4, 64072320), (5, 51257856), (6, 42714880), (8, 32036160), (10, 25628928), (12, 21357440), (13, 19714560), (15, 17085952), (16, 16018080), (17, 15075840), (20, 12814464), (24, 10678720), (26, 9857280), (30, 8542976), (32, 8009040), (34, 7537920), (39, 6571520), (40, 6407232), (48, 5339360), (51, 5025280), (52, 4928640), (60, 4271488), (64, 4004520), (65, 3942912), (68, 3768960), (78, 3285760), (80, 3203616), (85, 3015168), (96, 2669680), (102, 2512640), (104, 2464320), (120, 2135744), (128, 2002260), (130, 1971456), (136, 1884480), (151, 1697280), (156, 1642880), (160, 1601808), (170, 1507584), (192, 1334840), (195, 1314304), (204, 1256320), (208, 1232160), (221, 1159680), (240, 1067872), (255, 1005056), (256, 1001130), (260, 985728), (272, 942240), (302, 848640), (312, 821440), (320, 800904), (340, 753792), (384, 667420), (390, 657152), (408, 628160), (416, 616080), (442, 579840), (453, 565760), (480, 533936), (510, 502528), (512, 500565), (520, 492864), (544, 471120), (604, 424320), (624, 410720), (640, 400452), (663, 386560), (680, 376896), (755, 339456), (768, 333710), (780, 328576), (816, 314080), (832, 308040), (884, 289920), (906, 282880), (960, 266968), (1020, 251264), (1040, 246432), (1088, 235560), (1105, 231936), (1208, 212160), (1248, 205360), (1280, 200226), (1326, 193280), (1360, 188448), (1510, 169728), (1536, 166855), (1560, 164288), (1632, 157040), (1664, 154020), (1768, 144960), (1812, 141440), (1920, 133484), (1963, 130560), (2040, 125632), (2080, 123216), (2176, 117780), (2210, 115968), (2265, 113152), (2416, 106080), (2496, 102680), (2560, 100113), (2567, 99840), (2652, 96640), (2720, 94224), (3020, 84864), (3120, 82144), (3264, 78520), (3315, 77312), (3328, 77010), (3536, 72480), (3624, 70720), (3840, 66742), (3926, 65280), (4080, 62816), (4160, 61608), (4352, 58890), (4420, 57984), (4530, 56576), (4832, 53040), (4992, 51340), (5134, 49920), (5304, 48320), (5440, 47112), (5889, 43520), (6040, 42432), (6240, 41072), (6528, 39260), (6630, 38656), (6656, 38505), (7072, 36240), (7248, 35360), (7680, 33371), (7701, 33280), (7852, 32640), (8160, 31408), (8320, 30804), (8704, 29445), (8840, 28992), (9060, 28288), (9664, 26520), (9815, 26112), (9984, 25670), (10268, 24960), (10608, 24160), (10880, 23556), (11778, 21760), (12080, 21216), (12480, 20536), (12835, 19968), (13056, 19630), (13260, 19328), (14144, 18120), (14496, 17680), (15402, 16640), (15704, 16320)]