261421440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:449

約数の個数: 256

約数和(自身を含む): 972933120

約数和(自身を除く): 711511680

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, 53, 56, 60, 64, 70, 80, 84, 96, 105, 106, 112, 120, 128, 140, 159, 160, 168, 192, 210, 212, 224, 240, 265, 280, 318, 320, 336, 367, 371, 384, 420, 424, 448, 480, 530, 560, 636, 640, 672, 734, 742, 795, 840, 848, 896, 960, 1060, 1101, 1113, 1120, 1272, 1344, 1468, 1484, 1590, 1680, 1696, 1835, 1855, 1920, 2120, 2202, 2226, 2240, 2544, 2569, 2688, 2936, 2968, 3180, 3360, 3392, 3670, 3710, 4240, 4404, 4452, 4480, 5088, 5138, 5505, 5565, 5872, 5936, 6360, 6720, 6784, 7340, 7420, 7707, 8480, 8808, 8904, 10176, 10276, 11010, 11130, 11744, 11872, 12720, 12845, 13440, 14680, 14840, 15414, 16960, 17616, 17808, 19451, 20352, 20552, 22020, 22260, 23488, 23744, 25440, 25690, 29360, 29680, 30828, 33920, 35232, 35616, 38535, 38902, 41104, 44040, 44520, 46976, 47488, 50880, 51380, 58353, 58720, 59360, 61656, 70464, 71232, 77070, 77804, 82208, 88080, 89040, 97255, 101760, 102760, 116706, 117440, 118720, 123312, 136157, 140928, 142464, 154140, 155608, 164416, 176160, 178080, 194510, 205520, 233412, 234880, 237440, 246624, 272314, 291765, 308280, 311216, 328832, 352320, 356160, 389020, 408471, 411040, 466824, 493248, 544628, 583530, 616560, 622432, 680785, 704640, 712320, 778040, 816942, 822080, 933648, 986496, 1089256, 1167060, 1233120, 1244864, 1361570, 1556080, 1633884, 1644160, 1867296, 2042355, 2178512, 2334120, 2466240, 2489728, 2723140, 3112160, 3267768, 3734592, 4084710, 4357024, 4668240, 4932480, 5446280, 6224320, 6535536, 7469184, 8169420, 8714048, 9336480, 10892560, 12448640, 13071072, 16338840, 17428096, 18672960, 21785120, 26142144, 32677680, 37345920, 43570240, 52284288, 65355360, 87140480, 130710720, 261421440]

約数ペア:

[(1, 261421440), (2, 130710720), (3, 87140480), (4, 65355360), (5, 52284288), (6, 43570240), (7, 37345920), (8, 32677680), (10, 26142144), (12, 21785120), (14, 18672960), (15, 17428096), (16, 16338840), (20, 13071072), (21, 12448640), (24, 10892560), (28, 9336480), (30, 8714048), (32, 8169420), (35, 7469184), (40, 6535536), (42, 6224320), (48, 5446280), (53, 4932480), (56, 4668240), (60, 4357024), (64, 4084710), (70, 3734592), (80, 3267768), (84, 3112160), (96, 2723140), (105, 2489728), (106, 2466240), (112, 2334120), (120, 2178512), (128, 2042355), (140, 1867296), (159, 1644160), (160, 1633884), (168, 1556080), (192, 1361570), (210, 1244864), (212, 1233120), (224, 1167060), (240, 1089256), (265, 986496), (280, 933648), (318, 822080), (320, 816942), (336, 778040), (367, 712320), (371, 704640), (384, 680785), (420, 622432), (424, 616560), (448, 583530), (480, 544628), (530, 493248), (560, 466824), (636, 411040), (640, 408471), (672, 389020), (734, 356160), (742, 352320), (795, 328832), (840, 311216), (848, 308280), (896, 291765), (960, 272314), (1060, 246624), (1101, 237440), (1113, 234880), (1120, 233412), (1272, 205520), (1344, 194510), (1468, 178080), (1484, 176160), (1590, 164416), (1680, 155608), (1696, 154140), (1835, 142464), (1855, 140928), (1920, 136157), (2120, 123312), (2202, 118720), (2226, 117440), (2240, 116706), (2544, 102760), (2569, 101760), (2688, 97255), (2936, 89040), (2968, 88080), (3180, 82208), (3360, 77804), (3392, 77070), (3670, 71232), (3710, 70464), (4240, 61656), (4404, 59360), (4452, 58720), (4480, 58353), (5088, 51380), (5138, 50880), (5505, 47488), (5565, 46976), (5872, 44520), (5936, 44040), (6360, 41104), (6720, 38902), (6784, 38535), (7340, 35616), (7420, 35232), (7707, 33920), (8480, 30828), (8808, 29680), (8904, 29360), (10176, 25690), (10276, 25440), (11010, 23744), (11130, 23488), (11744, 22260), (11872, 22020), (12720, 20552), (12845, 20352), (13440, 19451), (14680, 17808), (14840, 17616), (15414, 16960)]