257128872

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 288

約数和(自身を含む): 891525600

約数和(自身を除く): 634396728

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 21, 22, 24, 26, 28, 33, 39, 42, 44, 49, 52, 56, 66, 77, 78, 84, 88, 91, 98, 104, 121, 132, 139, 143, 147, 154, 156, 168, 182, 196, 231, 242, 264, 273, 278, 286, 294, 308, 312, 363, 364, 392, 417, 429, 462, 484, 539, 546, 556, 572, 588, 616, 637, 726, 728, 834, 847, 858, 924, 968, 973, 1001, 1078, 1092, 1112, 1144, 1176, 1274, 1452, 1529, 1573, 1617, 1668, 1694, 1716, 1807, 1848, 1911, 1946, 2002, 2156, 2184, 2541, 2548, 2904, 2919, 3003, 3058, 3146, 3234, 3336, 3388, 3432, 3614, 3822, 3892, 4004, 4312, 4587, 4719, 5082, 5096, 5421, 5838, 5929, 6006, 6116, 6292, 6468, 6776, 6811, 7007, 7228, 7644, 7784, 8008, 9174, 9438, 10164, 10703, 10842, 11011, 11676, 11858, 12012, 12232, 12584, 12649, 12936, 13622, 14014, 14456, 15288, 16819, 17787, 18348, 18876, 19877, 20328, 20433, 21021, 21406, 21684, 22022, 23352, 23716, 24024, 25298, 27244, 28028, 32109, 33033, 33638, 35574, 36696, 37752, 37947, 39754, 40866, 42042, 42812, 43368, 44044, 47432, 50457, 50596, 54488, 56056, 59631, 64218, 66066, 67276, 71148, 74921, 75894, 77077, 79508, 81732, 84084, 85624, 88088, 88543, 100914, 101192, 117733, 119262, 128436, 132132, 134552, 139139, 142296, 149842, 151788, 154154, 159016, 163464, 168168, 177086, 201828, 218647, 224763, 231231, 235466, 238524, 256872, 264264, 265629, 278278, 299684, 303576, 308308, 353199, 354172, 403656, 417417, 437294, 449526, 462462, 470932, 477048, 531258, 556556, 599368, 616616, 655941, 706398, 708344, 824131, 834834, 874588, 899052, 924924, 941864, 973973, 1062516, 1113112, 1311882, 1412796, 1530529, 1648262, 1669668, 1749176, 1798104, 1849848, 1947946, 2125032, 2472393, 2623764, 2825592, 2921919, 3061058, 3296524, 3339336, 3895892, 4591587, 4944786, 5247528, 5843838, 6122116, 6593048, 7791784, 9183174, 9889572, 10713703, 11687676, 12244232, 18366348, 19779144, 21427406, 23375352, 32141109, 36732696, 42854812, 64282218, 85709624, 128564436, 257128872]

約数ペア:

[(1, 257128872), (2, 128564436), (3, 85709624), (4, 64282218), (6, 42854812), (7, 36732696), (8, 32141109), (11, 23375352), (12, 21427406), (13, 19779144), (14, 18366348), (21, 12244232), (22, 11687676), (24, 10713703), (26, 9889572), (28, 9183174), (33, 7791784), (39, 6593048), (42, 6122116), (44, 5843838), (49, 5247528), (52, 4944786), (56, 4591587), (66, 3895892), (77, 3339336), (78, 3296524), (84, 3061058), (88, 2921919), (91, 2825592), (98, 2623764), (104, 2472393), (121, 2125032), (132, 1947946), (139, 1849848), (143, 1798104), (147, 1749176), (154, 1669668), (156, 1648262), (168, 1530529), (182, 1412796), (196, 1311882), (231, 1113112), (242, 1062516), (264, 973973), (273, 941864), (278, 924924), (286, 899052), (294, 874588), (308, 834834), (312, 824131), (363, 708344), (364, 706398), (392, 655941), (417, 616616), (429, 599368), (462, 556556), (484, 531258), (539, 477048), (546, 470932), (556, 462462), (572, 449526), (588, 437294), (616, 417417), (637, 403656), (726, 354172), (728, 353199), (834, 308308), (847, 303576), (858, 299684), (924, 278278), (968, 265629), (973, 264264), (1001, 256872), (1078, 238524), (1092, 235466), (1112, 231231), (1144, 224763), (1176, 218647), (1274, 201828), (1452, 177086), (1529, 168168), (1573, 163464), (1617, 159016), (1668, 154154), (1694, 151788), (1716, 149842), (1807, 142296), (1848, 139139), (1911, 134552), (1946, 132132), (2002, 128436), (2156, 119262), (2184, 117733), (2541, 101192), (2548, 100914), (2904, 88543), (2919, 88088), (3003, 85624), (3058, 84084), (3146, 81732), (3234, 79508), (3336, 77077), (3388, 75894), (3432, 74921), (3614, 71148), (3822, 67276), (3892, 66066), (4004, 64218), (4312, 59631), (4587, 56056), (4719, 54488), (5082, 50596), (5096, 50457), (5421, 47432), (5838, 44044), (5929, 43368), (6006, 42812), (6116, 42042), (6292, 40866), (6468, 39754), (6776, 37947), (6811, 37752), (7007, 36696), (7228, 35574), (7644, 33638), (7784, 33033), (8008, 32109), (9174, 28028), (9438, 27244), (10164, 25298), (10703, 24024), (10842, 23716), (11011, 23352), (11676, 22022), (11858, 21684), (12012, 21406), (12232, 21021), (12584, 20433), (12649, 20328), (12936, 19877), (13622, 18876), (14014, 18348), (14456, 17787), (15288, 16819)]