81605664

素因数分解:

$2^5\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 192

約数和(自身を含む): 276756480

約数和(自身を除く): 195150816

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 72, 84, 96, 103, 108, 112, 126, 131, 144, 168, 189, 206, 216, 224, 252, 262, 288, 309, 336, 378, 393, 412, 432, 504, 524, 618, 672, 721, 756, 786, 824, 864, 917, 927, 1008, 1048, 1179, 1236, 1442, 1512, 1572, 1648, 1834, 1854, 2016, 2096, 2163, 2358, 2472, 2751, 2781, 2884, 3024, 3144, 3296, 3537, 3668, 3708, 4192, 4326, 4716, 4944, 5502, 5562, 5768, 6048, 6288, 6489, 7074, 7336, 7416, 8253, 8652, 9432, 9888, 11004, 11124, 11536, 12576, 12978, 13493, 14148, 14672, 14832, 16506, 17304, 18864, 19467, 22008, 22248, 23072, 24759, 25956, 26986, 28296, 29344, 29664, 33012, 34608, 37728, 38934, 40479, 44016, 44496, 49518, 51912, 53972, 56592, 66024, 69216, 77868, 80958, 88032, 88992, 94451, 99036, 103824, 107944, 113184, 121437, 132048, 155736, 161916, 188902, 198072, 207648, 215888, 242874, 264096, 283353, 311472, 323832, 364311, 377804, 396144, 431776, 485748, 566706, 622944, 647664, 728622, 755608, 792288, 850059, 971496, 1133412, 1295328, 1457244, 1511216, 1700118, 1942992, 2266824, 2550177, 2914488, 3022432, 3400236, 3885984, 4533648, 5100354, 5828976, 6800472, 9067296, 10200708, 11657952, 13600944, 20401416, 27201888, 40802832, 81605664]

約数ペア:

[(1, 81605664), (2, 40802832), (3, 27201888), (4, 20401416), (6, 13600944), (7, 11657952), (8, 10200708), (9, 9067296), (12, 6800472), (14, 5828976), (16, 5100354), (18, 4533648), (21, 3885984), (24, 3400236), (27, 3022432), (28, 2914488), (32, 2550177), (36, 2266824), (42, 1942992), (48, 1700118), (54, 1511216), (56, 1457244), (63, 1295328), (72, 1133412), (84, 971496), (96, 850059), (103, 792288), (108, 755608), (112, 728622), (126, 647664), (131, 622944), (144, 566706), (168, 485748), (189, 431776), (206, 396144), (216, 377804), (224, 364311), (252, 323832), (262, 311472), (288, 283353), (309, 264096), (336, 242874), (378, 215888), (393, 207648), (412, 198072), (432, 188902), (504, 161916), (524, 155736), (618, 132048), (672, 121437), (721, 113184), (756, 107944), (786, 103824), (824, 99036), (864, 94451), (917, 88992), (927, 88032), (1008, 80958), (1048, 77868), (1179, 69216), (1236, 66024), (1442, 56592), (1512, 53972), (1572, 51912), (1648, 49518), (1834, 44496), (1854, 44016), (2016, 40479), (2096, 38934), (2163, 37728), (2358, 34608), (2472, 33012), (2751, 29664), (2781, 29344), (2884, 28296), (3024, 26986), (3144, 25956), (3296, 24759), (3537, 23072), (3668, 22248), (3708, 22008), (4192, 19467), (4326, 18864), (4716, 17304), (4944, 16506), (5502, 14832), (5562, 14672), (5768, 14148), (6048, 13493), (6288, 12978), (6489, 12576), (7074, 11536), (7336, 11124), (7416, 11004), (8253, 9888), (8652, 9432)]