256356576

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:299

約数の個数: 240

約数和(自身を含む): 878169600

約数和(自身を除く): 621813024

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, 63, 71, 72, 81, 84, 96, 108, 112, 126, 142, 144, 162, 168, 189, 199, 213, 216, 224, 252, 284, 288, 324, 336, 378, 398, 426, 432, 497, 504, 567, 568, 597, 639, 648, 672, 756, 796, 852, 864, 994, 1008, 1134, 1136, 1194, 1278, 1296, 1393, 1491, 1512, 1592, 1704, 1791, 1917, 1988, 2016, 2268, 2272, 2388, 2556, 2592, 2786, 2982, 3024, 3184, 3408, 3582, 3834, 3976, 4179, 4473, 4536, 4776, 5112, 5373, 5572, 5751, 5964, 6048, 6368, 6816, 7164, 7668, 7952, 8358, 8946, 9072, 9552, 10224, 10746, 11144, 11502, 11928, 12537, 13419, 14129, 14328, 15336, 15904, 16119, 16716, 17892, 18144, 19104, 20448, 21492, 22288, 23004, 23856, 25074, 26838, 28258, 28656, 30672, 32238, 33432, 35784, 37611, 40257, 42387, 42984, 44576, 46008, 47712, 50148, 53676, 56516, 57312, 61344, 64476, 66864, 71568, 75222, 80514, 84774, 85968, 92016, 98903, 100296, 107352, 112833, 113032, 127161, 128952, 133728, 143136, 150444, 161028, 169548, 171936, 184032, 197806, 200592, 214704, 225666, 226064, 254322, 257904, 296709, 300888, 322056, 339096, 381483, 395612, 401184, 429408, 451332, 452128, 508644, 515808, 593418, 601776, 644112, 678192, 762966, 791224, 890127, 902664, 1017288, 1144449, 1186836, 1203552, 1288224, 1356384, 1525932, 1582448, 1780254, 1805328, 2034576, 2288898, 2373672, 2670381, 3051864, 3164896, 3560508, 3610656, 4069152, 4577796, 4747344, 5340762, 6103728, 7121016, 8011143, 9155592, 9494688, 10681524, 12207456, 14242032, 16022286, 18311184, 21363048, 28484064, 32044572, 36622368, 42726096, 64089144, 85452192, 128178288, 256356576]

約数ペア:

[(1, 256356576), (2, 128178288), (3, 85452192), (4, 64089144), (6, 42726096), (7, 36622368), (8, 32044572), (9, 28484064), (12, 21363048), (14, 18311184), (16, 16022286), (18, 14242032), (21, 12207456), (24, 10681524), (27, 9494688), (28, 9155592), (32, 8011143), (36, 7121016), (42, 6103728), (48, 5340762), (54, 4747344), (56, 4577796), (63, 4069152), (71, 3610656), (72, 3560508), (81, 3164896), (84, 3051864), (96, 2670381), (108, 2373672), (112, 2288898), (126, 2034576), (142, 1805328), (144, 1780254), (162, 1582448), (168, 1525932), (189, 1356384), (199, 1288224), (213, 1203552), (216, 1186836), (224, 1144449), (252, 1017288), (284, 902664), (288, 890127), (324, 791224), (336, 762966), (378, 678192), (398, 644112), (426, 601776), (432, 593418), (497, 515808), (504, 508644), (567, 452128), (568, 451332), (597, 429408), (639, 401184), (648, 395612), (672, 381483), (756, 339096), (796, 322056), (852, 300888), (864, 296709), (994, 257904), (1008, 254322), (1134, 226064), (1136, 225666), (1194, 214704), (1278, 200592), (1296, 197806), (1393, 184032), (1491, 171936), (1512, 169548), (1592, 161028), (1704, 150444), (1791, 143136), (1917, 133728), (1988, 128952), (2016, 127161), (2268, 113032), (2272, 112833), (2388, 107352), (2556, 100296), (2592, 98903), (2786, 92016), (2982, 85968), (3024, 84774), (3184, 80514), (3408, 75222), (3582, 71568), (3834, 66864), (3976, 64476), (4179, 61344), (4473, 57312), (4536, 56516), (4776, 53676), (5112, 50148), (5373, 47712), (5572, 46008), (5751, 44576), (5964, 42984), (6048, 42387), (6368, 40257), (6816, 37611), (7164, 35784), (7668, 33432), (7952, 32238), (8358, 30672), (8946, 28656), (9072, 28258), (9552, 26838), (10224, 25074), (10746, 23856), (11144, 23004), (11502, 22288), (11928, 21492), (12537, 20448), (13419, 19104), (14129, 18144), (14328, 17892), (15336, 16716), (15904, 16119)]