261993888

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 288

約数和(自身を含む): 880588800

約数和(自身を除く): 618594912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 29, 32, 36, 38, 39, 48, 52, 57, 58, 72, 76, 78, 87, 96, 104, 114, 116, 117, 127, 144, 152, 156, 171, 174, 208, 228, 232, 234, 247, 254, 261, 288, 304, 312, 342, 348, 377, 381, 416, 456, 464, 468, 494, 508, 522, 551, 608, 624, 684, 696, 741, 754, 762, 912, 928, 936, 988, 1016, 1044, 1102, 1131, 1143, 1248, 1368, 1392, 1482, 1508, 1524, 1651, 1653, 1824, 1872, 1976, 2032, 2088, 2204, 2223, 2262, 2286, 2413, 2736, 2784, 2964, 3016, 3048, 3302, 3306, 3393, 3683, 3744, 3952, 4064, 4176, 4408, 4446, 4524, 4572, 4826, 4953, 4959, 5472, 5928, 6032, 6096, 6604, 6612, 6786, 7163, 7239, 7366, 7904, 8352, 8816, 8892, 9048, 9144, 9652, 9906, 9918, 11049, 11856, 12064, 12192, 13208, 13224, 13572, 14326, 14478, 14732, 14859, 17632, 17784, 18096, 18288, 19304, 19812, 19836, 21489, 21717, 22098, 23712, 26416, 26448, 27144, 28652, 28956, 29464, 29718, 31369, 33147, 35568, 36192, 36576, 38608, 39624, 39672, 42978, 43434, 44196, 47879, 52832, 52896, 54288, 57304, 57912, 58928, 59436, 62738, 64467, 66294, 69977, 71136, 77216, 79248, 79344, 85956, 86868, 88392, 94107, 95758, 108576, 114608, 115824, 117856, 118872, 125476, 128934, 132588, 139954, 143637, 158496, 158688, 171912, 173736, 176784, 188214, 191516, 209931, 229216, 231648, 237744, 250952, 257868, 265176, 279908, 282321, 287274, 343824, 347472, 353568, 376428, 383032, 419862, 430911, 475488, 501904, 515736, 530352, 559816, 564642, 574548, 629793, 687648, 694944, 752856, 766064, 839724, 861822, 909701, 1003808, 1031472, 1060704, 1119632, 1129284, 1149096, 1259586, 1505712, 1532128, 1679448, 1723644, 1819402, 2062944, 2239264, 2258568, 2298192, 2519172, 2729103, 3011424, 3358896, 3447288, 3638804, 4517136, 4596384, 5038344, 5458206, 6717792, 6894576, 7277608, 8187309, 9034272, 10076688, 10916412, 13789152, 14555216, 16374618, 20153376, 21832824, 29110432, 32749236, 43665648, 65498472, 87331296, 130996944, 261993888]

約数ペア:

[(1, 261993888), (2, 130996944), (3, 87331296), (4, 65498472), (6, 43665648), (8, 32749236), (9, 29110432), (12, 21832824), (13, 20153376), (16, 16374618), (18, 14555216), (19, 13789152), (24, 10916412), (26, 10076688), (29, 9034272), (32, 8187309), (36, 7277608), (38, 6894576), (39, 6717792), (48, 5458206), (52, 5038344), (57, 4596384), (58, 4517136), (72, 3638804), (76, 3447288), (78, 3358896), (87, 3011424), (96, 2729103), (104, 2519172), (114, 2298192), (116, 2258568), (117, 2239264), (127, 2062944), (144, 1819402), (152, 1723644), (156, 1679448), (171, 1532128), (174, 1505712), (208, 1259586), (228, 1149096), (232, 1129284), (234, 1119632), (247, 1060704), (254, 1031472), (261, 1003808), (288, 909701), (304, 861822), (312, 839724), (342, 766064), (348, 752856), (377, 694944), (381, 687648), (416, 629793), (456, 574548), (464, 564642), (468, 559816), (494, 530352), (508, 515736), (522, 501904), (551, 475488), (608, 430911), (624, 419862), (684, 383032), (696, 376428), (741, 353568), (754, 347472), (762, 343824), (912, 287274), (928, 282321), (936, 279908), (988, 265176), (1016, 257868), (1044, 250952), (1102, 237744), (1131, 231648), (1143, 229216), (1248, 209931), (1368, 191516), (1392, 188214), (1482, 176784), (1508, 173736), (1524, 171912), (1651, 158688), (1653, 158496), (1824, 143637), (1872, 139954), (1976, 132588), (2032, 128934), (2088, 125476), (2204, 118872), (2223, 117856), (2262, 115824), (2286, 114608), (2413, 108576), (2736, 95758), (2784, 94107), (2964, 88392), (3016, 86868), (3048, 85956), (3302, 79344), (3306, 79248), (3393, 77216), (3683, 71136), (3744, 69977), (3952, 66294), (4064, 64467), (4176, 62738), (4408, 59436), (4446, 58928), (4524, 57912), (4572, 57304), (4826, 54288), (4953, 52896), (4959, 52832), (5472, 47879), (5928, 44196), (6032, 43434), (6096, 42978), (6604, 39672), (6612, 39624), (6786, 38608), (7163, 36576), (7239, 36192), (7366, 35568), (7904, 33147), (8352, 31369), (8816, 29718), (8892, 29464), (9048, 28956), (9144, 28652), (9652, 27144), (9906, 26448), (9918, 26416), (11049, 23712), (11856, 22098), (12064, 21717), (12192, 21489), (13208, 19836), (13224, 19812), (13572, 19304), (14326, 18288), (14478, 18096), (14732, 17784), (14859, 17632)]