261262512

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{607}}^1$

素因数の和:696

約数の個数: 180

約数和(自身を含む): 865914816

約数和(自身を除く): 604652304

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 61, 63, 72, 84, 98, 112, 122, 126, 144, 147, 168, 183, 196, 244, 252, 294, 336, 366, 392, 427, 441, 488, 504, 549, 588, 607, 732, 784, 854, 882, 976, 1008, 1098, 1176, 1214, 1281, 1464, 1708, 1764, 1821, 2196, 2352, 2428, 2562, 2928, 2989, 3416, 3528, 3642, 3843, 4249, 4392, 4856, 5124, 5463, 5978, 6832, 7056, 7284, 7686, 8498, 8784, 8967, 9712, 10248, 10926, 11956, 12747, 14568, 15372, 16996, 17934, 20496, 21852, 23912, 25494, 26901, 29136, 29743, 30744, 33992, 35868, 37027, 38241, 43704, 47824, 50988, 53802, 59486, 61488, 67984, 71736, 74054, 76482, 87408, 89229, 101976, 107604, 111081, 118972, 143472, 148108, 152964, 178458, 203952, 215208, 222162, 237944, 259189, 267687, 296216, 305928, 333243, 356916, 430416, 444324, 475888, 518378, 535374, 592432, 611856, 666486, 713832, 777567, 888648, 1036756, 1070748, 1332972, 1427664, 1555134, 1777296, 1814323, 2073512, 2141496, 2332701, 2665944, 3110268, 3628646, 4147024, 4282992, 4665402, 5331888, 5442969, 6220536, 7257292, 9330804, 10885938, 12441072, 14514584, 16328907, 18661608, 21771876, 29029168, 32657814, 37323216, 43543752, 65315628, 87087504, 130631256, 261262512]

約数ペア:

[(1, 261262512), (2, 130631256), (3, 87087504), (4, 65315628), (6, 43543752), (7, 37323216), (8, 32657814), (9, 29029168), (12, 21771876), (14, 18661608), (16, 16328907), (18, 14514584), (21, 12441072), (24, 10885938), (28, 9330804), (36, 7257292), (42, 6220536), (48, 5442969), (49, 5331888), (56, 4665402), (61, 4282992), (63, 4147024), (72, 3628646), (84, 3110268), (98, 2665944), (112, 2332701), (122, 2141496), (126, 2073512), (144, 1814323), (147, 1777296), (168, 1555134), (183, 1427664), (196, 1332972), (244, 1070748), (252, 1036756), (294, 888648), (336, 777567), (366, 713832), (392, 666486), (427, 611856), (441, 592432), (488, 535374), (504, 518378), (549, 475888), (588, 444324), (607, 430416), (732, 356916), (784, 333243), (854, 305928), (882, 296216), (976, 267687), (1008, 259189), (1098, 237944), (1176, 222162), (1214, 215208), (1281, 203952), (1464, 178458), (1708, 152964), (1764, 148108), (1821, 143472), (2196, 118972), (2352, 111081), (2428, 107604), (2562, 101976), (2928, 89229), (2989, 87408), (3416, 76482), (3528, 74054), (3642, 71736), (3843, 67984), (4249, 61488), (4392, 59486), (4856, 53802), (5124, 50988), (5463, 47824), (5978, 43704), (6832, 38241), (7056, 37027), (7284, 35868), (7686, 33992), (8498, 30744), (8784, 29743), (8967, 29136), (9712, 26901), (10248, 25494), (10926, 23912), (11956, 21852), (12747, 20496), (14568, 17934), (15372, 16996)]