256742136

素因数分解:

$2^3\times 3^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:381

約数の個数: 224

約数和(自身を含む): 870902400

約数和(自身を除く): 614160264

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 27, 28, 36, 38, 42, 54, 56, 57, 63, 72, 76, 81, 84, 108, 114, 126, 133, 152, 162, 168, 171, 189, 216, 228, 243, 252, 266, 324, 331, 342, 378, 399, 456, 486, 504, 513, 532, 567, 648, 662, 684, 729, 756, 798, 972, 993, 1026, 1064, 1134, 1197, 1324, 1368, 1458, 1512, 1539, 1596, 1701, 1944, 1986, 2052, 2268, 2317, 2394, 2648, 2916, 2979, 3078, 3192, 3402, 3591, 3972, 4104, 4536, 4617, 4634, 4788, 5103, 5832, 5958, 6156, 6289, 6804, 6951, 7182, 7944, 8937, 9234, 9268, 9576, 10206, 10773, 11916, 12312, 12578, 13608, 13851, 13902, 14364, 17874, 18468, 18536, 18867, 20412, 20853, 21546, 23832, 25156, 26811, 27702, 27804, 28728, 32319, 35748, 36936, 37734, 40824, 41706, 43092, 44023, 50312, 53622, 55404, 55608, 56601, 62559, 64638, 71496, 75468, 80433, 83412, 86184, 88046, 96957, 107244, 110808, 113202, 125118, 129276, 132069, 150936, 160866, 166824, 169803, 176092, 187677, 193914, 214488, 226404, 241299, 250236, 258552, 264138, 321732, 339606, 352184, 375354, 387828, 396207, 452808, 482598, 500472, 509409, 528276, 563031, 643464, 679212, 750708, 775656, 792414, 965196, 1018818, 1056552, 1126062, 1188621, 1358424, 1501416, 1528227, 1584828, 1689093, 1930392, 2037636, 2252124, 2377242, 3056454, 3169656, 3378186, 3565863, 4075272, 4504248, 4584681, 4754484, 6112908, 6756372, 7131726, 9169362, 9508968, 10697589, 12225816, 13512744, 14263452, 18338724, 21395178, 28526904, 32092767, 36677448, 42790356, 64185534, 85580712, 128371068, 256742136]

約数ペア:

[(1, 256742136), (2, 128371068), (3, 85580712), (4, 64185534), (6, 42790356), (7, 36677448), (8, 32092767), (9, 28526904), (12, 21395178), (14, 18338724), (18, 14263452), (19, 13512744), (21, 12225816), (24, 10697589), (27, 9508968), (28, 9169362), (36, 7131726), (38, 6756372), (42, 6112908), (54, 4754484), (56, 4584681), (57, 4504248), (63, 4075272), (72, 3565863), (76, 3378186), (81, 3169656), (84, 3056454), (108, 2377242), (114, 2252124), (126, 2037636), (133, 1930392), (152, 1689093), (162, 1584828), (168, 1528227), (171, 1501416), (189, 1358424), (216, 1188621), (228, 1126062), (243, 1056552), (252, 1018818), (266, 965196), (324, 792414), (331, 775656), (342, 750708), (378, 679212), (399, 643464), (456, 563031), (486, 528276), (504, 509409), (513, 500472), (532, 482598), (567, 452808), (648, 396207), (662, 387828), (684, 375354), (729, 352184), (756, 339606), (798, 321732), (972, 264138), (993, 258552), (1026, 250236), (1064, 241299), (1134, 226404), (1197, 214488), (1324, 193914), (1368, 187677), (1458, 176092), (1512, 169803), (1539, 166824), (1596, 160866), (1701, 150936), (1944, 132069), (1986, 129276), (2052, 125118), (2268, 113202), (2317, 110808), (2394, 107244), (2648, 96957), (2916, 88046), (2979, 86184), (3078, 83412), (3192, 80433), (3402, 75468), (3591, 71496), (3972, 64638), (4104, 62559), (4536, 56601), (4617, 55608), (4634, 55404), (4788, 53622), (5103, 50312), (5832, 44023), (5958, 43092), (6156, 41706), (6289, 40824), (6804, 37734), (6951, 36936), (7182, 35748), (7944, 32319), (8937, 28728), (9234, 27804), (9268, 27702), (9576, 26811), (10206, 25156), (10773, 23832), (11916, 21546), (12312, 20853), (12578, 20412), (13608, 18867), (13851, 18536), (13902, 18468), (14364, 17874)]