640870272

素因数分解:

$2^7\times 3^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:538

約数の個数: 256

約数和(自身を含む): 2203200000

約数和(自身を除く): 1562329728

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 59, 63, 64, 72, 84, 96, 108, 112, 118, 126, 128, 144, 168, 177, 189, 192, 216, 224, 236, 252, 288, 336, 354, 378, 384, 413, 432, 448, 449, 472, 504, 531, 576, 672, 708, 756, 826, 864, 896, 898, 944, 1008, 1062, 1152, 1239, 1344, 1347, 1416, 1512, 1593, 1652, 1728, 1796, 1888, 2016, 2124, 2478, 2688, 2694, 2832, 3024, 3143, 3186, 3304, 3456, 3592, 3717, 3776, 4032, 4041, 4248, 4956, 5388, 5664, 6048, 6286, 6372, 6608, 7184, 7434, 7552, 8064, 8082, 8496, 9429, 9912, 10776, 11151, 11328, 12096, 12123, 12572, 12744, 13216, 14368, 14868, 16164, 16992, 18858, 19824, 21552, 22302, 22656, 24192, 24246, 25144, 25488, 26432, 26491, 28287, 28736, 29736, 32328, 33984, 37716, 39648, 43104, 44604, 48492, 50288, 50976, 52864, 52982, 56574, 57472, 59472, 64656, 67968, 75432, 79296, 79473, 84861, 86208, 89208, 96984, 100576, 101952, 105964, 113148, 118944, 129312, 150864, 158592, 158946, 169722, 172416, 178416, 185437, 193968, 201152, 203904, 211928, 226296, 237888, 238419, 258624, 301728, 317892, 339444, 356832, 370874, 387936, 402304, 423856, 452592, 475776, 476838, 517248, 556311, 603456, 635784, 678888, 713664, 715257, 741748, 775872, 847712, 905184, 953676, 1112622, 1206912, 1271568, 1357776, 1427328, 1430514, 1483496, 1551744, 1668933, 1695424, 1810368, 1907352, 2225244, 2543136, 2715552, 2861028, 2966992, 3337866, 3390848, 3620736, 3814704, 4450488, 5006799, 5086272, 5431104, 5722056, 5933984, 6675732, 7629408, 8900976, 10013598, 10172544, 10862208, 11444112, 11867968, 13351464, 15258816, 17801952, 20027196, 22888224, 23735936, 26702928, 30517632, 35603904, 40054392, 45776448, 53405856, 71207808, 80108784, 91552896, 106811712, 160217568, 213623424, 320435136, 640870272]

約数ペア:

[(1, 640870272), (2, 320435136), (3, 213623424), (4, 160217568), (6, 106811712), (7, 91552896), (8, 80108784), (9, 71207808), (12, 53405856), (14, 45776448), (16, 40054392), (18, 35603904), (21, 30517632), (24, 26702928), (27, 23735936), (28, 22888224), (32, 20027196), (36, 17801952), (42, 15258816), (48, 13351464), (54, 11867968), (56, 11444112), (59, 10862208), (63, 10172544), (64, 10013598), (72, 8900976), (84, 7629408), (96, 6675732), (108, 5933984), (112, 5722056), (118, 5431104), (126, 5086272), (128, 5006799), (144, 4450488), (168, 3814704), (177, 3620736), (189, 3390848), (192, 3337866), (216, 2966992), (224, 2861028), (236, 2715552), (252, 2543136), (288, 2225244), (336, 1907352), (354, 1810368), (378, 1695424), (384, 1668933), (413, 1551744), (432, 1483496), (448, 1430514), (449, 1427328), (472, 1357776), (504, 1271568), (531, 1206912), (576, 1112622), (672, 953676), (708, 905184), (756, 847712), (826, 775872), (864, 741748), (896, 715257), (898, 713664), (944, 678888), (1008, 635784), (1062, 603456), (1152, 556311), (1239, 517248), (1344, 476838), (1347, 475776), (1416, 452592), (1512, 423856), (1593, 402304), (1652, 387936), (1728, 370874), (1796, 356832), (1888, 339444), (2016, 317892), (2124, 301728), (2478, 258624), (2688, 238419), (2694, 237888), (2832, 226296), (3024, 211928), (3143, 203904), (3186, 201152), (3304, 193968), (3456, 185437), (3592, 178416), (3717, 172416), (3776, 169722), (4032, 158946), (4041, 158592), (4248, 150864), (4956, 129312), (5388, 118944), (5664, 113148), (6048, 105964), (6286, 101952), (6372, 100576), (6608, 96984), (7184, 89208), (7434, 86208), (7552, 84861), (8064, 79473), (8082, 79296), (8496, 75432), (9429, 67968), (9912, 64656), (10776, 59472), (11151, 57472), (11328, 56574), (12096, 52982), (12123, 52864), (12572, 50976), (12744, 50288), (13216, 48492), (14368, 44604), (14868, 43104), (16164, 39648), (16992, 37716), (18858, 33984), (19824, 32328), (21552, 29736), (22302, 28736), (22656, 28287), (24192, 26491), (24246, 26432), (25144, 25488)]