81502080

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:277

約数の個数: 256

約数和(自身を含む): 301397760

約数和(自身を除く): 219895680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 17, 20, 22, 24, 30, 32, 33, 34, 40, 44, 48, 51, 55, 60, 64, 66, 68, 80, 85, 88, 96, 102, 110, 120, 128, 132, 136, 160, 165, 170, 176, 187, 192, 204, 220, 227, 240, 255, 264, 272, 320, 330, 340, 352, 374, 384, 408, 440, 454, 480, 510, 528, 544, 561, 640, 660, 680, 681, 704, 748, 816, 880, 908, 935, 960, 1020, 1056, 1088, 1122, 1135, 1320, 1360, 1362, 1408, 1496, 1632, 1760, 1816, 1870, 1920, 2040, 2112, 2176, 2244, 2270, 2497, 2640, 2720, 2724, 2805, 2992, 3264, 3405, 3520, 3632, 3740, 3859, 4080, 4224, 4488, 4540, 4994, 5280, 5440, 5448, 5610, 5984, 6528, 6810, 7040, 7264, 7480, 7491, 7718, 8160, 8976, 9080, 9988, 10560, 10880, 10896, 11220, 11577, 11968, 12485, 13620, 14528, 14960, 14982, 15436, 16320, 17952, 18160, 19295, 19976, 21120, 21792, 22440, 23154, 23936, 24970, 27240, 29056, 29920, 29964, 30872, 32640, 35904, 36320, 37455, 38590, 39952, 42449, 43584, 44880, 46308, 49940, 54480, 57885, 59840, 59928, 61744, 71808, 72640, 74910, 77180, 79904, 84898, 87168, 89760, 92616, 99880, 108960, 115770, 119680, 119856, 123488, 127347, 145280, 149820, 154360, 159808, 169796, 179520, 185232, 199760, 212245, 217920, 231540, 239712, 246976, 254694, 299640, 308720, 319616, 339592, 359040, 370464, 399520, 424490, 435840, 463080, 479424, 493952, 509388, 599280, 617440, 636735, 679184, 740928, 799040, 848980, 926160, 958848, 1018776, 1198560, 1234880, 1273470, 1358368, 1481856, 1598080, 1697960, 1852320, 2037552, 2397120, 2469760, 2546940, 2716736, 3395920, 3704640, 4075104, 4794240, 5093880, 5433472, 6791840, 7409280, 8150208, 10187760, 13583680, 16300416, 20375520, 27167360, 40751040, 81502080]

約数ペア:

[(1, 81502080), (2, 40751040), (3, 27167360), (4, 20375520), (5, 16300416), (6, 13583680), (8, 10187760), (10, 8150208), (11, 7409280), (12, 6791840), (15, 5433472), (16, 5093880), (17, 4794240), (20, 4075104), (22, 3704640), (24, 3395920), (30, 2716736), (32, 2546940), (33, 2469760), (34, 2397120), (40, 2037552), (44, 1852320), (48, 1697960), (51, 1598080), (55, 1481856), (60, 1358368), (64, 1273470), (66, 1234880), (68, 1198560), (80, 1018776), (85, 958848), (88, 926160), (96, 848980), (102, 799040), (110, 740928), (120, 679184), (128, 636735), (132, 617440), (136, 599280), (160, 509388), (165, 493952), (170, 479424), (176, 463080), (187, 435840), (192, 424490), (204, 399520), (220, 370464), (227, 359040), (240, 339592), (255, 319616), (264, 308720), (272, 299640), (320, 254694), (330, 246976), (340, 239712), (352, 231540), (374, 217920), (384, 212245), (408, 199760), (440, 185232), (454, 179520), (480, 169796), (510, 159808), (528, 154360), (544, 149820), (561, 145280), (640, 127347), (660, 123488), (680, 119856), (681, 119680), (704, 115770), (748, 108960), (816, 99880), (880, 92616), (908, 89760), (935, 87168), (960, 84898), (1020, 79904), (1056, 77180), (1088, 74910), (1122, 72640), (1135, 71808), (1320, 61744), (1360, 59928), (1362, 59840), (1408, 57885), (1496, 54480), (1632, 49940), (1760, 46308), (1816, 44880), (1870, 43584), (1920, 42449), (2040, 39952), (2112, 38590), (2176, 37455), (2244, 36320), (2270, 35904), (2497, 32640), (2640, 30872), (2720, 29964), (2724, 29920), (2805, 29056), (2992, 27240), (3264, 24970), (3405, 23936), (3520, 23154), (3632, 22440), (3740, 21792), (3859, 21120), (4080, 19976), (4224, 19295), (4488, 18160), (4540, 17952), (4994, 16320), (5280, 15436), (5440, 14982), (5448, 14960), (5610, 14528), (5984, 13620), (6528, 12485), (6810, 11968), (7040, 11577), (7264, 11220), (7480, 10896), (7491, 10880), (7718, 10560), (8160, 9988), (8976, 9080)]