256985124

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:434

約数の個数: 144

約数和(自身を含む): 723945600

約数和(自身を除く): 466960476

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 29, 33, 34, 44, 51, 58, 66, 68, 87, 102, 116, 121, 132, 174, 187, 204, 242, 319, 348, 359, 363, 374, 484, 493, 561, 638, 718, 726, 748, 957, 986, 1077, 1122, 1276, 1436, 1452, 1479, 1914, 1972, 2057, 2154, 2244, 2958, 3509, 3828, 3949, 4114, 4308, 5423, 5916, 6103, 6171, 7018, 7898, 8228, 10411, 10527, 10846, 11847, 12206, 12342, 14036, 15796, 16269, 18309, 20822, 21054, 21692, 23694, 24412, 24684, 31233, 32538, 36618, 41644, 42108, 43439, 47388, 59653, 62466, 65076, 67133, 73236, 86878, 114521, 119306, 124932, 130317, 134266, 173756, 176987, 178959, 201399, 229042, 238612, 260634, 268532, 343563, 353974, 357918, 402798, 458084, 521268, 530961, 687126, 707948, 715836, 738463, 805596, 1061922, 1259731, 1374252, 1476926, 1946857, 2123844, 2215389, 2519462, 2953852, 3779193, 3893714, 4430778, 5038924, 5840571, 7558386, 7787428, 8861556, 11681142, 15116772, 21415427, 23362284, 42830854, 64246281, 85661708, 128492562, 256985124]

約数ペア:

[(1, 256985124), (2, 128492562), (3, 85661708), (4, 64246281), (6, 42830854), (11, 23362284), (12, 21415427), (17, 15116772), (22, 11681142), (29, 8861556), (33, 7787428), (34, 7558386), (44, 5840571), (51, 5038924), (58, 4430778), (66, 3893714), (68, 3779193), (87, 2953852), (102, 2519462), (116, 2215389), (121, 2123844), (132, 1946857), (174, 1476926), (187, 1374252), (204, 1259731), (242, 1061922), (319, 805596), (348, 738463), (359, 715836), (363, 707948), (374, 687126), (484, 530961), (493, 521268), (561, 458084), (638, 402798), (718, 357918), (726, 353974), (748, 343563), (957, 268532), (986, 260634), (1077, 238612), (1122, 229042), (1276, 201399), (1436, 178959), (1452, 176987), (1479, 173756), (1914, 134266), (1972, 130317), (2057, 124932), (2154, 119306), (2244, 114521), (2958, 86878), (3509, 73236), (3828, 67133), (3949, 65076), (4114, 62466), (4308, 59653), (5423, 47388), (5916, 43439), (6103, 42108), (6171, 41644), (7018, 36618), (7898, 32538), (8228, 31233), (10411, 24684), (10527, 24412), (10846, 23694), (11847, 21692), (12206, 21054), (12342, 20822), (14036, 18309), (15796, 16269)]