256217976

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{31}}^2$

素因数の和:127

約数の個数: 216

約数和(自身を含む): 856641240

約数和(自身を除く): 600423264

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 23, 24, 28, 31, 36, 42, 46, 56, 62, 63, 69, 72, 84, 92, 93, 124, 126, 138, 161, 168, 184, 186, 207, 217, 248, 252, 276, 279, 322, 372, 414, 434, 483, 504, 529, 552, 558, 644, 651, 713, 744, 828, 868, 961, 966, 1058, 1116, 1288, 1302, 1426, 1449, 1587, 1656, 1736, 1922, 1932, 1953, 2116, 2139, 2232, 2604, 2852, 2883, 2898, 3174, 3703, 3844, 3864, 3906, 4232, 4278, 4761, 4991, 5208, 5704, 5766, 5796, 6348, 6417, 6727, 7406, 7688, 7812, 8556, 8649, 9522, 9982, 11109, 11532, 11592, 12696, 12834, 13454, 14812, 14973, 15624, 16399, 17112, 17298, 19044, 19964, 20181, 22103, 22218, 23064, 25668, 26908, 29624, 29946, 32798, 33327, 34596, 38088, 39928, 40362, 44206, 44436, 44919, 49197, 51336, 53816, 59892, 60543, 65596, 66309, 66654, 69192, 80724, 88412, 88872, 89838, 98394, 114793, 119784, 121086, 131192, 132618, 133308, 147591, 154721, 161448, 176824, 179676, 196788, 198927, 229586, 242172, 265236, 266616, 295182, 309442, 344379, 359352, 393576, 397854, 459172, 464163, 484344, 508369, 530472, 590364, 618884, 688758, 795708, 918344, 928326, 1016738, 1033137, 1180728, 1237768, 1377516, 1392489, 1525107, 1591416, 1856652, 2033476, 2066274, 2755032, 2784978, 3050214, 3558583, 3713304, 4066952, 4132548, 4575321, 5569956, 6100428, 7117166, 8265096, 9150642, 10675749, 11139912, 12200856, 14234332, 18301284, 21351498, 28468664, 32027247, 36602568, 42702996, 64054494, 85405992, 128108988, 256217976]

約数ペア:

[(1, 256217976), (2, 128108988), (3, 85405992), (4, 64054494), (6, 42702996), (7, 36602568), (8, 32027247), (9, 28468664), (12, 21351498), (14, 18301284), (18, 14234332), (21, 12200856), (23, 11139912), (24, 10675749), (28, 9150642), (31, 8265096), (36, 7117166), (42, 6100428), (46, 5569956), (56, 4575321), (62, 4132548), (63, 4066952), (69, 3713304), (72, 3558583), (84, 3050214), (92, 2784978), (93, 2755032), (124, 2066274), (126, 2033476), (138, 1856652), (161, 1591416), (168, 1525107), (184, 1392489), (186, 1377516), (207, 1237768), (217, 1180728), (248, 1033137), (252, 1016738), (276, 928326), (279, 918344), (322, 795708), (372, 688758), (414, 618884), (434, 590364), (483, 530472), (504, 508369), (529, 484344), (552, 464163), (558, 459172), (644, 397854), (651, 393576), (713, 359352), (744, 344379), (828, 309442), (868, 295182), (961, 266616), (966, 265236), (1058, 242172), (1116, 229586), (1288, 198927), (1302, 196788), (1426, 179676), (1449, 176824), (1587, 161448), (1656, 154721), (1736, 147591), (1922, 133308), (1932, 132618), (1953, 131192), (2116, 121086), (2139, 119784), (2232, 114793), (2604, 98394), (2852, 89838), (2883, 88872), (2898, 88412), (3174, 80724), (3703, 69192), (3844, 66654), (3864, 66309), (3906, 65596), (4232, 60543), (4278, 59892), (4761, 53816), (4991, 51336), (5208, 49197), (5704, 44919), (5766, 44436), (5796, 44206), (6348, 40362), (6417, 39928), (6727, 38088), (7406, 34596), (7688, 33327), (7812, 32798), (8556, 29946), (8649, 29624), (9522, 26908), (9982, 25668), (11109, 23064), (11532, 22218), (11592, 22103), (12696, 20181), (12834, 19964), (13454, 19044), (14812, 17298), (14973, 17112), (15624, 16399)]