257853904

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:449

約数の個数: 120

約数和(自身を含む): 641208960

約数和(自身を除く): 383355056

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 53, 56, 77, 88, 106, 112, 121, 154, 176, 212, 242, 308, 359, 371, 424, 484, 583, 616, 718, 742, 847, 848, 968, 1166, 1232, 1436, 1484, 1694, 1936, 2332, 2513, 2872, 2968, 3388, 3949, 4081, 4664, 5026, 5744, 5936, 6413, 6776, 7898, 8162, 9328, 10052, 12826, 13552, 15796, 16324, 19027, 20104, 25652, 27643, 31592, 32648, 38054, 40208, 43439, 44891, 51304, 55286, 63184, 65296, 76108, 86878, 89782, 102608, 110572, 133189, 152216, 173756, 179564, 209297, 221144, 266378, 304073, 304432, 347512, 359128, 418594, 442288, 532756, 608146, 695024, 718256, 837188, 1065512, 1216292, 1465079, 1674376, 2131024, 2302267, 2432584, 2930158, 3348752, 4604534, 4865168, 5860316, 9209068, 11720632, 16115869, 18418136, 23441264, 32231738, 36836272, 64463476, 128926952, 257853904]

約数ペア:

[(1, 257853904), (2, 128926952), (4, 64463476), (7, 36836272), (8, 32231738), (11, 23441264), (14, 18418136), (16, 16115869), (22, 11720632), (28, 9209068), (44, 5860316), (53, 4865168), (56, 4604534), (77, 3348752), (88, 2930158), (106, 2432584), (112, 2302267), (121, 2131024), (154, 1674376), (176, 1465079), (212, 1216292), (242, 1065512), (308, 837188), (359, 718256), (371, 695024), (424, 608146), (484, 532756), (583, 442288), (616, 418594), (718, 359128), (742, 347512), (847, 304432), (848, 304073), (968, 266378), (1166, 221144), (1232, 209297), (1436, 179564), (1484, 173756), (1694, 152216), (1936, 133189), (2332, 110572), (2513, 102608), (2872, 89782), (2968, 86878), (3388, 76108), (3949, 65296), (4081, 63184), (4664, 55286), (5026, 51304), (5744, 44891), (5936, 43439), (6413, 40208), (6776, 38054), (7898, 32648), (8162, 31592), (9328, 27643), (10052, 25652), (12826, 20104), (13552, 19027), (15796, 16324)]