81572568

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1257

約数の個数: 128

約数和(自身を含む): 261342720

約数和(自身を除く): 179770152

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 37, 42, 44, 56, 66, 74, 77, 84, 88, 111, 132, 148, 154, 168, 222, 231, 259, 264, 296, 308, 407, 444, 462, 518, 616, 777, 814, 888, 924, 1036, 1193, 1221, 1554, 1628, 1848, 2072, 2386, 2442, 2849, 3108, 3256, 3579, 4772, 4884, 5698, 6216, 7158, 8351, 8547, 9544, 9768, 11396, 13123, 14316, 16702, 17094, 22792, 25053, 26246, 28632, 33404, 34188, 39369, 44141, 50106, 52492, 66808, 68376, 78738, 88282, 91861, 100212, 104984, 132423, 157476, 176564, 183722, 200424, 264846, 275583, 308987, 314952, 353128, 367444, 485551, 529692, 551166, 617974, 734888, 926961, 971102, 1059384, 1102332, 1235948, 1456653, 1853922, 1942204, 2204664, 2471896, 2913306, 3398857, 3707844, 3884408, 5826612, 6797714, 7415688, 10196571, 11653224, 13595428, 20393142, 27190856, 40786284, 81572568]

約数ペア:

[(1, 81572568), (2, 40786284), (3, 27190856), (4, 20393142), (6, 13595428), (7, 11653224), (8, 10196571), (11, 7415688), (12, 6797714), (14, 5826612), (21, 3884408), (22, 3707844), (24, 3398857), (28, 2913306), (33, 2471896), (37, 2204664), (42, 1942204), (44, 1853922), (56, 1456653), (66, 1235948), (74, 1102332), (77, 1059384), (84, 971102), (88, 926961), (111, 734888), (132, 617974), (148, 551166), (154, 529692), (168, 485551), (222, 367444), (231, 353128), (259, 314952), (264, 308987), (296, 275583), (308, 264846), (407, 200424), (444, 183722), (462, 176564), (518, 157476), (616, 132423), (777, 104984), (814, 100212), (888, 91861), (924, 88282), (1036, 78738), (1193, 68376), (1221, 66808), (1554, 52492), (1628, 50106), (1848, 44141), (2072, 39369), (2386, 34188), (2442, 33404), (2849, 28632), (3108, 26246), (3256, 25053), (3579, 22792), (4772, 17094), (4884, 16702), (5698, 14316), (6216, 13123), (7158, 11396), (8351, 9768), (8547, 9544)]