28391040

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 256

約数和(自身を含む): 105753600

約数和(自身を除く): 77362560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 53, 54, 60, 62, 64, 72, 80, 90, 93, 96, 106, 108, 120, 124, 128, 135, 144, 155, 159, 160, 180, 186, 192, 212, 216, 240, 248, 265, 270, 279, 288, 310, 318, 320, 360, 372, 384, 424, 432, 465, 477, 480, 496, 530, 540, 558, 576, 620, 636, 640, 720, 744, 795, 837, 848, 864, 930, 954, 960, 992, 1060, 1080, 1116, 1152, 1240, 1272, 1395, 1431, 1440, 1488, 1590, 1643, 1674, 1696, 1728, 1860, 1908, 1920, 1984, 2120, 2160, 2232, 2385, 2480, 2544, 2790, 2862, 2880, 2976, 3180, 3286, 3348, 3392, 3456, 3720, 3816, 3968, 4185, 4240, 4320, 4464, 4770, 4929, 4960, 5088, 5580, 5724, 5760, 5952, 6360, 6572, 6696, 6784, 7155, 7440, 7632, 8215, 8370, 8480, 8640, 8928, 9540, 9858, 9920, 10176, 11160, 11448, 11904, 12720, 13144, 13392, 14310, 14787, 14880, 15264, 16430, 16740, 16960, 17280, 17856, 19080, 19716, 19840, 20352, 22320, 22896, 24645, 25440, 26288, 26784, 28620, 29574, 29760, 30528, 32860, 33480, 33920, 35712, 38160, 39432, 44361, 44640, 45792, 49290, 50880, 52576, 53568, 57240, 59148, 59520, 61056, 65720, 66960, 73935, 76320, 78864, 88722, 89280, 91584, 98580, 101760, 105152, 107136, 114480, 118296, 131440, 133920, 147870, 152640, 157728, 177444, 178560, 183168, 197160, 210304, 221805, 228960, 236592, 262880, 267840, 295740, 305280, 315456, 354888, 394320, 443610, 457920, 473184, 525760, 535680, 591480, 630912, 709776, 788640, 887220, 915840, 946368, 1051520, 1182960, 1419552, 1577280, 1774440, 1892736, 2365920, 2839104, 3154560, 3548880, 4731840, 5678208, 7097760, 9463680, 14195520, 28391040]

約数ペア:

[(1, 28391040), (2, 14195520), (3, 9463680), (4, 7097760), (5, 5678208), (6, 4731840), (8, 3548880), (9, 3154560), (10, 2839104), (12, 2365920), (15, 1892736), (16, 1774440), (18, 1577280), (20, 1419552), (24, 1182960), (27, 1051520), (30, 946368), (31, 915840), (32, 887220), (36, 788640), (40, 709776), (45, 630912), (48, 591480), (53, 535680), (54, 525760), (60, 473184), (62, 457920), (64, 443610), (72, 394320), (80, 354888), (90, 315456), (93, 305280), (96, 295740), (106, 267840), (108, 262880), (120, 236592), (124, 228960), (128, 221805), (135, 210304), (144, 197160), (155, 183168), (159, 178560), (160, 177444), (180, 157728), (186, 152640), (192, 147870), (212, 133920), (216, 131440), (240, 118296), (248, 114480), (265, 107136), (270, 105152), (279, 101760), (288, 98580), (310, 91584), (318, 89280), (320, 88722), (360, 78864), (372, 76320), (384, 73935), (424, 66960), (432, 65720), (465, 61056), (477, 59520), (480, 59148), (496, 57240), (530, 53568), (540, 52576), (558, 50880), (576, 49290), (620, 45792), (636, 44640), (640, 44361), (720, 39432), (744, 38160), (795, 35712), (837, 33920), (848, 33480), (864, 32860), (930, 30528), (954, 29760), (960, 29574), (992, 28620), (1060, 26784), (1080, 26288), (1116, 25440), (1152, 24645), (1240, 22896), (1272, 22320), (1395, 20352), (1431, 19840), (1440, 19716), (1488, 19080), (1590, 17856), (1643, 17280), (1674, 16960), (1696, 16740), (1728, 16430), (1860, 15264), (1908, 14880), (1920, 14787), (1984, 14310), (2120, 13392), (2160, 13144), (2232, 12720), (2385, 11904), (2480, 11448), (2544, 11160), (2790, 10176), (2862, 9920), (2880, 9858), (2976, 9540), (3180, 8928), (3286, 8640), (3348, 8480), (3392, 8370), (3456, 8215), (3720, 7632), (3816, 7440), (3968, 7155), (4185, 6784), (4240, 6696), (4320, 6572), (4464, 6360), (4770, 5952), (4929, 5760), (4960, 5724), (5088, 5580)]