261289728

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:999

約数の個数: 216

約数和(自身を含む): 912588768

約数和(自身を除く): 651299040

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 64, 68, 72, 84, 96, 102, 112, 119, 126, 128, 136, 144, 153, 168, 192, 204, 224, 238, 252, 256, 272, 288, 306, 336, 357, 384, 408, 448, 476, 504, 544, 576, 612, 672, 714, 768, 816, 896, 952, 953, 1008, 1071, 1088, 1152, 1224, 1344, 1428, 1632, 1792, 1904, 1906, 2016, 2142, 2176, 2304, 2448, 2688, 2856, 2859, 3264, 3808, 3812, 4032, 4284, 4352, 4896, 5376, 5712, 5718, 6528, 6671, 7616, 7624, 8064, 8568, 8577, 9792, 11424, 11436, 13056, 13342, 15232, 15248, 16128, 16201, 17136, 17154, 19584, 20013, 22848, 22872, 26684, 30464, 30496, 32402, 34272, 34308, 39168, 40026, 45696, 45744, 48603, 53368, 60039, 60992, 64804, 68544, 68616, 80052, 91392, 91488, 97206, 106736, 113407, 120078, 121984, 129608, 137088, 137232, 145809, 160104, 182976, 194412, 213472, 226814, 240156, 243968, 259216, 274176, 274464, 291618, 320208, 340221, 365952, 388824, 426944, 453628, 480312, 518432, 548928, 583236, 640416, 680442, 731904, 777648, 853888, 907256, 960624, 1020663, 1036864, 1097856, 1166472, 1280832, 1360884, 1555296, 1707776, 1814512, 1921248, 2041326, 2073728, 2195712, 2332944, 2561664, 2721768, 3110592, 3629024, 3842496, 4082652, 4147456, 4665888, 5123328, 5443536, 6221184, 7258048, 7684992, 8165304, 9331776, 10887072, 12442368, 14516096, 15369984, 16330608, 18663552, 21774144, 29032192, 32661216, 37327104, 43548288, 65322432, 87096576, 130644864, 261289728]

約数ペア:

[(1, 261289728), (2, 130644864), (3, 87096576), (4, 65322432), (6, 43548288), (7, 37327104), (8, 32661216), (9, 29032192), (12, 21774144), (14, 18663552), (16, 16330608), (17, 15369984), (18, 14516096), (21, 12442368), (24, 10887072), (28, 9331776), (32, 8165304), (34, 7684992), (36, 7258048), (42, 6221184), (48, 5443536), (51, 5123328), (56, 4665888), (63, 4147456), (64, 4082652), (68, 3842496), (72, 3629024), (84, 3110592), (96, 2721768), (102, 2561664), (112, 2332944), (119, 2195712), (126, 2073728), (128, 2041326), (136, 1921248), (144, 1814512), (153, 1707776), (168, 1555296), (192, 1360884), (204, 1280832), (224, 1166472), (238, 1097856), (252, 1036864), (256, 1020663), (272, 960624), (288, 907256), (306, 853888), (336, 777648), (357, 731904), (384, 680442), (408, 640416), (448, 583236), (476, 548928), (504, 518432), (544, 480312), (576, 453628), (612, 426944), (672, 388824), (714, 365952), (768, 340221), (816, 320208), (896, 291618), (952, 274464), (953, 274176), (1008, 259216), (1071, 243968), (1088, 240156), (1152, 226814), (1224, 213472), (1344, 194412), (1428, 182976), (1632, 160104), (1792, 145809), (1904, 137232), (1906, 137088), (2016, 129608), (2142, 121984), (2176, 120078), (2304, 113407), (2448, 106736), (2688, 97206), (2856, 91488), (2859, 91392), (3264, 80052), (3808, 68616), (3812, 68544), (4032, 64804), (4284, 60992), (4352, 60039), (4896, 53368), (5376, 48603), (5712, 45744), (5718, 45696), (6528, 40026), (6671, 39168), (7616, 34308), (7624, 34272), (8064, 32402), (8568, 30496), (8577, 30464), (9792, 26684), (11424, 22872), (11436, 22848), (13056, 20013), (13342, 19584), (15232, 17154), (15248, 17136), (16128, 16201)]