321578880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:437

約数の個数: 256

約数和(自身を含む): 1191490560

約数和(自身を除く): 869911680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 71, 80, 84, 96, 105, 112, 120, 128, 140, 142, 160, 168, 192, 210, 213, 224, 240, 280, 284, 320, 336, 337, 355, 384, 420, 426, 448, 480, 497, 560, 568, 640, 672, 674, 710, 840, 852, 896, 960, 994, 1011, 1065, 1120, 1136, 1344, 1348, 1420, 1491, 1680, 1685, 1704, 1920, 1988, 2022, 2130, 2240, 2272, 2359, 2485, 2688, 2696, 2840, 2982, 3360, 3370, 3408, 3976, 4044, 4260, 4480, 4544, 4718, 4970, 5055, 5392, 5680, 5964, 6720, 6740, 6816, 7077, 7455, 7952, 8088, 8520, 9088, 9436, 9940, 10110, 10784, 11360, 11795, 11928, 13440, 13480, 13632, 14154, 14910, 15904, 16176, 17040, 18872, 19880, 20220, 21568, 22720, 23590, 23856, 23927, 26960, 27264, 28308, 29820, 31808, 32352, 34080, 35385, 37744, 39760, 40440, 43136, 45440, 47180, 47712, 47854, 53920, 56616, 59640, 63616, 64704, 68160, 70770, 71781, 75488, 79520, 80880, 94360, 95424, 95708, 107840, 113232, 119280, 119635, 129408, 136320, 141540, 143562, 150976, 159040, 161760, 167489, 188720, 190848, 191416, 215680, 226464, 238560, 239270, 283080, 287124, 301952, 318080, 323520, 334978, 358905, 377440, 382832, 452928, 477120, 478540, 502467, 566160, 574248, 647040, 669956, 717810, 754880, 765664, 837445, 905856, 954240, 957080, 1004934, 1132320, 1148496, 1339912, 1435620, 1509760, 1531328, 1674890, 1914160, 2009868, 2264640, 2296992, 2512335, 2679824, 2871240, 3062656, 3349780, 3828320, 4019736, 4529280, 4593984, 5024670, 5359648, 5742480, 6699560, 7656640, 8039472, 9187968, 10049340, 10719296, 11484960, 13399120, 15313280, 16078944, 20098680, 21438592, 22969920, 26798240, 32157888, 40197360, 45939840, 53596480, 64315776, 80394720, 107192960, 160789440, 321578880]

約数ペア:

[(1, 321578880), (2, 160789440), (3, 107192960), (4, 80394720), (5, 64315776), (6, 53596480), (7, 45939840), (8, 40197360), (10, 32157888), (12, 26798240), (14, 22969920), (15, 21438592), (16, 20098680), (20, 16078944), (21, 15313280), (24, 13399120), (28, 11484960), (30, 10719296), (32, 10049340), (35, 9187968), (40, 8039472), (42, 7656640), (48, 6699560), (56, 5742480), (60, 5359648), (64, 5024670), (70, 4593984), (71, 4529280), (80, 4019736), (84, 3828320), (96, 3349780), (105, 3062656), (112, 2871240), (120, 2679824), (128, 2512335), (140, 2296992), (142, 2264640), (160, 2009868), (168, 1914160), (192, 1674890), (210, 1531328), (213, 1509760), (224, 1435620), (240, 1339912), (280, 1148496), (284, 1132320), (320, 1004934), (336, 957080), (337, 954240), (355, 905856), (384, 837445), (420, 765664), (426, 754880), (448, 717810), (480, 669956), (497, 647040), (560, 574248), (568, 566160), (640, 502467), (672, 478540), (674, 477120), (710, 452928), (840, 382832), (852, 377440), (896, 358905), (960, 334978), (994, 323520), (1011, 318080), (1065, 301952), (1120, 287124), (1136, 283080), (1344, 239270), (1348, 238560), (1420, 226464), (1491, 215680), (1680, 191416), (1685, 190848), (1704, 188720), (1920, 167489), (1988, 161760), (2022, 159040), (2130, 150976), (2240, 143562), (2272, 141540), (2359, 136320), (2485, 129408), (2688, 119635), (2696, 119280), (2840, 113232), (2982, 107840), (3360, 95708), (3370, 95424), (3408, 94360), (3976, 80880), (4044, 79520), (4260, 75488), (4480, 71781), (4544, 70770), (4718, 68160), (4970, 64704), (5055, 63616), (5392, 59640), (5680, 56616), (5964, 53920), (6720, 47854), (6740, 47712), (6816, 47180), (7077, 45440), (7455, 43136), (7952, 40440), (8088, 39760), (8520, 37744), (9088, 35385), (9436, 34080), (9940, 32352), (10110, 31808), (10784, 29820), (11360, 28308), (11795, 27264), (11928, 26960), (13440, 23927), (13480, 23856), (13632, 23590), (14154, 22720), (14910, 21568), (15904, 20220), (16176, 19880), (17040, 18872)]