256811520

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1$

素因数の和:331

約数の個数: 320

約数和(自身を含む): 997007616

約数和(自身を除く): 740196096

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 32, 34, 35, 40, 42, 48, 51, 56, 60, 64, 68, 70, 80, 84, 85, 96, 102, 105, 112, 119, 120, 128, 136, 140, 160, 168, 170, 192, 204, 210, 224, 238, 240, 255, 256, 272, 280, 281, 320, 336, 340, 357, 384, 408, 420, 448, 476, 480, 510, 512, 544, 560, 562, 595, 640, 672, 680, 714, 768, 816, 840, 843, 896, 952, 960, 1020, 1088, 1120, 1124, 1190, 1280, 1344, 1360, 1405, 1428, 1536, 1632, 1680, 1686, 1785, 1792, 1904, 1920, 1967, 2040, 2176, 2240, 2248, 2380, 2560, 2688, 2720, 2810, 2856, 3264, 3360, 3372, 3570, 3584, 3808, 3840, 3934, 4080, 4215, 4352, 4480, 4496, 4760, 4777, 5376, 5440, 5620, 5712, 5901, 6528, 6720, 6744, 7140, 7616, 7680, 7868, 8160, 8430, 8704, 8960, 8992, 9520, 9554, 9835, 10752, 10880, 11240, 11424, 11802, 13056, 13440, 13488, 14280, 14331, 15232, 15736, 16320, 16860, 17920, 17984, 19040, 19108, 19670, 21760, 22480, 22848, 23604, 23885, 26112, 26880, 26976, 28560, 28662, 29505, 30464, 31472, 32640, 33439, 33720, 35968, 38080, 38216, 39340, 43520, 44960, 45696, 47208, 47770, 53760, 53952, 57120, 57324, 59010, 60928, 62944, 65280, 66878, 67440, 71655, 71936, 76160, 76432, 78680, 89920, 91392, 94416, 95540, 100317, 107904, 114240, 114648, 118020, 125888, 130560, 133756, 134880, 143310, 143872, 152320, 152864, 157360, 167195, 179840, 182784, 188832, 191080, 200634, 215808, 228480, 229296, 236040, 251776, 267512, 269760, 286620, 304640, 305728, 314720, 334390, 359680, 377664, 382160, 401268, 431616, 456960, 458592, 472080, 501585, 503552, 535024, 539520, 573240, 611456, 629440, 668780, 719360, 755328, 764320, 802536, 913920, 917184, 944160, 1003170, 1007104, 1070048, 1079040, 1146480, 1222912, 1258880, 1337560, 1510656, 1528640, 1605072, 1834368, 1888320, 2006340, 2140096, 2158080, 2292960, 2445824, 2517760, 2675120, 3021312, 3057280, 3210144, 3668736, 3776640, 4012680, 4280192, 4585920, 5035520, 5350240, 6114560, 6420288, 7337472, 7553280, 8025360, 8560384, 9171840, 10700480, 12229120, 12840576, 15106560, 16050720, 17120768, 18343680, 21400960, 25681152, 32101440, 36687360, 42801920, 51362304, 64202880, 85603840, 128405760, 256811520]

約数ペア:

[(1, 256811520), (2, 128405760), (3, 85603840), (4, 64202880), (5, 51362304), (6, 42801920), (7, 36687360), (8, 32101440), (10, 25681152), (12, 21400960), (14, 18343680), (15, 17120768), (16, 16050720), (17, 15106560), (20, 12840576), (21, 12229120), (24, 10700480), (28, 9171840), (30, 8560384), (32, 8025360), (34, 7553280), (35, 7337472), (40, 6420288), (42, 6114560), (48, 5350240), (51, 5035520), (56, 4585920), (60, 4280192), (64, 4012680), (68, 3776640), (70, 3668736), (80, 3210144), (84, 3057280), (85, 3021312), (96, 2675120), (102, 2517760), (105, 2445824), (112, 2292960), (119, 2158080), (120, 2140096), (128, 2006340), (136, 1888320), (140, 1834368), (160, 1605072), (168, 1528640), (170, 1510656), (192, 1337560), (204, 1258880), (210, 1222912), (224, 1146480), (238, 1079040), (240, 1070048), (255, 1007104), (256, 1003170), (272, 944160), (280, 917184), (281, 913920), (320, 802536), (336, 764320), (340, 755328), (357, 719360), (384, 668780), (408, 629440), (420, 611456), (448, 573240), (476, 539520), (480, 535024), (510, 503552), (512, 501585), (544, 472080), (560, 458592), (562, 456960), (595, 431616), (640, 401268), (672, 382160), (680, 377664), (714, 359680), (768, 334390), (816, 314720), (840, 305728), (843, 304640), (896, 286620), (952, 269760), (960, 267512), (1020, 251776), (1088, 236040), (1120, 229296), (1124, 228480), (1190, 215808), (1280, 200634), (1344, 191080), (1360, 188832), (1405, 182784), (1428, 179840), (1536, 167195), (1632, 157360), (1680, 152864), (1686, 152320), (1785, 143872), (1792, 143310), (1904, 134880), (1920, 133756), (1967, 130560), (2040, 125888), (2176, 118020), (2240, 114648), (2248, 114240), (2380, 107904), (2560, 100317), (2688, 95540), (2720, 94416), (2810, 91392), (2856, 89920), (3264, 78680), (3360, 76432), (3372, 76160), (3570, 71936), (3584, 71655), (3808, 67440), (3840, 66878), (3934, 65280), (4080, 62944), (4215, 60928), (4352, 59010), (4480, 57324), (4496, 57120), (4760, 53952), (4777, 53760), (5376, 47770), (5440, 47208), (5620, 45696), (5712, 44960), (5901, 43520), (6528, 39340), (6720, 38216), (6744, 38080), (7140, 35968), (7616, 33720), (7680, 33439), (7868, 32640), (8160, 31472), (8430, 30464), (8704, 29505), (8960, 28662), (8992, 28560), (9520, 26976), (9554, 26880), (9835, 26112), (10752, 23885), (10880, 23604), (11240, 22848), (11424, 22480), (11802, 21760), (13056, 19670), (13440, 19108), (13488, 19040), (14280, 17984), (14331, 17920), (15232, 16860), (15736, 16320)]