81121824

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1$

素因数の和:309

約数の個数: 240

約数和(自身を含む): 289795968

約数和(自身を除く): 208674144

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 51, 54, 56, 63, 68, 72, 81, 84, 96, 102, 108, 112, 119, 126, 136, 144, 153, 162, 168, 189, 204, 216, 224, 238, 252, 263, 272, 288, 306, 324, 336, 357, 378, 408, 432, 459, 476, 504, 526, 544, 567, 612, 648, 672, 714, 756, 789, 816, 864, 918, 952, 1008, 1052, 1071, 1134, 1224, 1296, 1377, 1428, 1512, 1578, 1632, 1836, 1841, 1904, 2016, 2104, 2142, 2268, 2367, 2448, 2592, 2754, 2856, 3024, 3156, 3213, 3672, 3682, 3808, 4208, 4284, 4471, 4536, 4734, 4896, 5508, 5523, 5712, 6048, 6312, 6426, 7101, 7344, 7364, 8416, 8568, 8942, 9072, 9468, 9639, 11016, 11046, 11424, 12624, 12852, 13413, 14202, 14688, 14728, 16569, 17136, 17884, 18144, 18936, 19278, 21303, 22032, 22092, 25248, 25704, 26826, 28404, 29456, 31297, 33138, 34272, 35768, 37872, 38556, 40239, 42606, 44064, 44184, 49707, 51408, 53652, 56808, 58912, 62594, 66276, 71536, 75744, 77112, 80478, 85212, 88368, 93891, 99414, 102816, 107304, 113616, 120717, 125188, 132552, 143072, 149121, 154224, 160956, 170424, 176736, 187782, 198828, 214608, 227232, 241434, 250376, 265104, 281673, 298242, 308448, 321912, 340848, 362151, 375564, 397656, 429216, 482868, 500752, 530208, 563346, 596484, 643824, 681696, 724302, 751128, 795312, 845019, 965736, 1001504, 1126692, 1192968, 1287648, 1448604, 1502256, 1590624, 1690038, 1931472, 2253384, 2385936, 2535057, 2897208, 3004512, 3380076, 3862944, 4506768, 4771872, 5070114, 5794416, 6760152, 9013536, 10140228, 11588832, 13520304, 20280456, 27040608, 40560912, 81121824]

約数ペア:

[(1, 81121824), (2, 40560912), (3, 27040608), (4, 20280456), (6, 13520304), (7, 11588832), (8, 10140228), (9, 9013536), (12, 6760152), (14, 5794416), (16, 5070114), (17, 4771872), (18, 4506768), (21, 3862944), (24, 3380076), (27, 3004512), (28, 2897208), (32, 2535057), (34, 2385936), (36, 2253384), (42, 1931472), (48, 1690038), (51, 1590624), (54, 1502256), (56, 1448604), (63, 1287648), (68, 1192968), (72, 1126692), (81, 1001504), (84, 965736), (96, 845019), (102, 795312), (108, 751128), (112, 724302), (119, 681696), (126, 643824), (136, 596484), (144, 563346), (153, 530208), (162, 500752), (168, 482868), (189, 429216), (204, 397656), (216, 375564), (224, 362151), (238, 340848), (252, 321912), (263, 308448), (272, 298242), (288, 281673), (306, 265104), (324, 250376), (336, 241434), (357, 227232), (378, 214608), (408, 198828), (432, 187782), (459, 176736), (476, 170424), (504, 160956), (526, 154224), (544, 149121), (567, 143072), (612, 132552), (648, 125188), (672, 120717), (714, 113616), (756, 107304), (789, 102816), (816, 99414), (864, 93891), (918, 88368), (952, 85212), (1008, 80478), (1052, 77112), (1071, 75744), (1134, 71536), (1224, 66276), (1296, 62594), (1377, 58912), (1428, 56808), (1512, 53652), (1578, 51408), (1632, 49707), (1836, 44184), (1841, 44064), (1904, 42606), (2016, 40239), (2104, 38556), (2142, 37872), (2268, 35768), (2367, 34272), (2448, 33138), (2592, 31297), (2754, 29456), (2856, 28404), (3024, 26826), (3156, 25704), (3213, 25248), (3672, 22092), (3682, 22032), (3808, 21303), (4208, 19278), (4284, 18936), (4471, 18144), (4536, 17884), (4734, 17136), (4896, 16569), (5508, 14728), (5523, 14688), (5712, 14202), (6048, 13413), (6312, 12852), (6426, 12624), (7101, 11424), (7344, 11046), (7364, 11016), (8416, 9639), (8568, 9468), (8942, 9072)]