261917568

素因数分解:

$2^7\times 3^2\times {\mathrm{11}}^2\times {\mathrm{1879}}^1$

素因数の和:1921

約数の個数: 144

約数和(自身を含む): 828882600

約数和(自身を除く): 566965032

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 121, 128, 132, 144, 176, 192, 198, 242, 264, 288, 352, 363, 384, 396, 484, 528, 576, 704, 726, 792, 968, 1056, 1089, 1152, 1408, 1452, 1584, 1879, 1936, 2112, 2178, 2904, 3168, 3758, 3872, 4224, 4356, 5637, 5808, 6336, 7516, 7744, 8712, 11274, 11616, 12672, 15032, 15488, 16911, 17424, 20669, 22548, 23232, 30064, 33822, 34848, 41338, 45096, 46464, 60128, 62007, 67644, 69696, 82676, 90192, 120256, 124014, 135288, 139392, 165352, 180384, 186021, 227359, 240512, 248028, 270576, 330704, 360768, 372042, 454718, 496056, 541152, 661408, 682077, 721536, 744084, 909436, 992112, 1082304, 1322816, 1364154, 1488168, 1818872, 1984224, 2046231, 2164608, 2645632, 2728308, 2976336, 3637744, 3968448, 4092462, 5456616, 5952672, 7275488, 7936896, 8184924, 10913232, 11905344, 14550976, 16369848, 21826464, 23810688, 29101952, 32739696, 43652928, 65479392, 87305856, 130958784, 261917568]

約数ペア:

[(1, 261917568), (2, 130958784), (3, 87305856), (4, 65479392), (6, 43652928), (8, 32739696), (9, 29101952), (11, 23810688), (12, 21826464), (16, 16369848), (18, 14550976), (22, 11905344), (24, 10913232), (32, 8184924), (33, 7936896), (36, 7275488), (44, 5952672), (48, 5456616), (64, 4092462), (66, 3968448), (72, 3637744), (88, 2976336), (96, 2728308), (99, 2645632), (121, 2164608), (128, 2046231), (132, 1984224), (144, 1818872), (176, 1488168), (192, 1364154), (198, 1322816), (242, 1082304), (264, 992112), (288, 909436), (352, 744084), (363, 721536), (384, 682077), (396, 661408), (484, 541152), (528, 496056), (576, 454718), (704, 372042), (726, 360768), (792, 330704), (968, 270576), (1056, 248028), (1089, 240512), (1152, 227359), (1408, 186021), (1452, 180384), (1584, 165352), (1879, 139392), (1936, 135288), (2112, 124014), (2178, 120256), (2904, 90192), (3168, 82676), (3758, 69696), (3872, 67644), (4224, 62007), (4356, 60128), (5637, 46464), (5808, 45096), (6336, 41338), (7516, 34848), (7744, 33822), (8712, 30064), (11274, 23232), (11616, 22548), (12672, 20669), (15032, 17424), (15488, 16911)]