261287208

素因数分解:

$2^3\times 3^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:259

約数の個数: 288

約数和(自身を含む): 923700960

約数和(自身を除く): 662413752

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 49, 52, 54, 56, 63, 72, 78, 81, 84, 91, 98, 104, 108, 117, 126, 147, 156, 162, 168, 182, 189, 196, 211, 216, 234, 243, 252, 273, 294, 312, 324, 351, 364, 378, 392, 422, 441, 468, 486, 504, 546, 567, 588, 633, 637, 648, 702, 728, 756, 819, 844, 882, 936, 972, 1053, 1092, 1134, 1176, 1266, 1274, 1323, 1404, 1477, 1512, 1638, 1688, 1701, 1764, 1899, 1911, 1944, 2106, 2184, 2268, 2457, 2532, 2548, 2646, 2743, 2808, 2954, 3159, 3276, 3402, 3528, 3798, 3822, 3969, 4212, 4431, 4536, 4914, 5064, 5096, 5292, 5486, 5697, 5733, 5908, 6318, 6552, 6804, 7371, 7596, 7644, 7938, 8229, 8424, 8862, 9828, 10339, 10584, 10972, 11394, 11466, 11816, 11907, 12636, 13293, 13608, 14742, 15192, 15288, 15876, 16458, 17091, 17199, 17724, 19201, 19656, 20678, 21944, 22113, 22788, 22932, 23814, 24687, 25272, 26586, 29484, 31017, 31752, 32916, 34182, 34398, 35448, 38402, 39879, 41356, 44226, 45576, 45864, 47628, 49374, 51273, 51597, 53172, 57603, 58968, 62034, 65832, 68364, 68796, 74061, 76804, 79758, 82712, 88452, 93051, 95256, 98748, 102546, 103194, 106344, 115206, 119637, 124068, 134407, 136728, 137592, 148122, 153608, 154791, 159516, 172809, 176904, 186102, 197496, 205092, 206388, 222183, 230412, 239274, 248136, 268814, 279153, 296244, 309582, 319032, 345618, 358911, 372204, 403221, 410184, 412776, 444366, 460824, 478548, 518427, 537628, 558306, 592488, 619164, 666549, 691236, 717822, 744408, 806442, 837459, 888732, 957096, 1036854, 1075256, 1116612, 1209663, 1238328, 1333098, 1382472, 1435644, 1555281, 1612884, 1674918, 1777464, 2073708, 2233224, 2419326, 2512377, 2666196, 2871288, 3110562, 3225768, 3349836, 3628989, 4147416, 4665843, 4838652, 5024754, 5332392, 6221124, 6699672, 7257978, 9331686, 9677304, 10049508, 10886967, 12442248, 14515956, 18663372, 20099016, 21773934, 29031912, 32660901, 37326744, 43547868, 65321802, 87095736, 130643604, 261287208]

約数ペア:

[(1, 261287208), (2, 130643604), (3, 87095736), (4, 65321802), (6, 43547868), (7, 37326744), (8, 32660901), (9, 29031912), (12, 21773934), (13, 20099016), (14, 18663372), (18, 14515956), (21, 12442248), (24, 10886967), (26, 10049508), (27, 9677304), (28, 9331686), (36, 7257978), (39, 6699672), (42, 6221124), (49, 5332392), (52, 5024754), (54, 4838652), (56, 4665843), (63, 4147416), (72, 3628989), (78, 3349836), (81, 3225768), (84, 3110562), (91, 2871288), (98, 2666196), (104, 2512377), (108, 2419326), (117, 2233224), (126, 2073708), (147, 1777464), (156, 1674918), (162, 1612884), (168, 1555281), (182, 1435644), (189, 1382472), (196, 1333098), (211, 1238328), (216, 1209663), (234, 1116612), (243, 1075256), (252, 1036854), (273, 957096), (294, 888732), (312, 837459), (324, 806442), (351, 744408), (364, 717822), (378, 691236), (392, 666549), (422, 619164), (441, 592488), (468, 558306), (486, 537628), (504, 518427), (546, 478548), (567, 460824), (588, 444366), (633, 412776), (637, 410184), (648, 403221), (702, 372204), (728, 358911), (756, 345618), (819, 319032), (844, 309582), (882, 296244), (936, 279153), (972, 268814), (1053, 248136), (1092, 239274), (1134, 230412), (1176, 222183), (1266, 206388), (1274, 205092), (1323, 197496), (1404, 186102), (1477, 176904), (1512, 172809), (1638, 159516), (1688, 154791), (1701, 153608), (1764, 148122), (1899, 137592), (1911, 136728), (1944, 134407), (2106, 124068), (2184, 119637), (2268, 115206), (2457, 106344), (2532, 103194), (2548, 102546), (2646, 98748), (2743, 95256), (2808, 93051), (2954, 88452), (3159, 82712), (3276, 79758), (3402, 76804), (3528, 74061), (3798, 68796), (3822, 68364), (3969, 65832), (4212, 62034), (4431, 58968), (4536, 57603), (4914, 53172), (5064, 51597), (5096, 51273), (5292, 49374), (5486, 47628), (5697, 45864), (5733, 45576), (5908, 44226), (6318, 41356), (6552, 39879), (6804, 38402), (7371, 35448), (7596, 34398), (7644, 34182), (7938, 32916), (8229, 31752), (8424, 31017), (8862, 29484), (9828, 26586), (10339, 25272), (10584, 24687), (10972, 23814), (11394, 22932), (11466, 22788), (11816, 22113), (11907, 21944), (12636, 20678), (13293, 19656), (13608, 19201), (14742, 17724), (15192, 17199), (15288, 17091), (15876, 16458)]