280228256

素因数分解:

$2^5\times 7^3\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:264

約数の個数: 144

約数和(自身を含む): 710539200

約数和(自身を除く): 430310944

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 121, 154, 176, 196, 211, 224, 242, 308, 343, 352, 392, 422, 484, 539, 616, 686, 784, 844, 847, 968, 1078, 1232, 1372, 1477, 1568, 1688, 1694, 1936, 2156, 2321, 2464, 2744, 2954, 3376, 3388, 3773, 3872, 4312, 4642, 5488, 5908, 5929, 6752, 6776, 7546, 8624, 9284, 10339, 10976, 11816, 11858, 13552, 15092, 16247, 17248, 18568, 20678, 23632, 23716, 25531, 27104, 30184, 32494, 37136, 41356, 41503, 47264, 47432, 51062, 60368, 64988, 72373, 74272, 82712, 83006, 94864, 102124, 113729, 120736, 129976, 144746, 165424, 166012, 178717, 189728, 204248, 227458, 259952, 289492, 330848, 332024, 357434, 408496, 454916, 519904, 578984, 664048, 714868, 796103, 816992, 909832, 1157968, 1251019, 1328096, 1429736, 1592206, 1819664, 2315936, 2502038, 2859472, 3184412, 3639328, 5004076, 5718944, 6368824, 8757133, 10008152, 12737648, 17514266, 20016304, 25475296, 35028532, 40032608, 70057064, 140114128, 280228256]

約数ペア:

[(1, 280228256), (2, 140114128), (4, 70057064), (7, 40032608), (8, 35028532), (11, 25475296), (14, 20016304), (16, 17514266), (22, 12737648), (28, 10008152), (32, 8757133), (44, 6368824), (49, 5718944), (56, 5004076), (77, 3639328), (88, 3184412), (98, 2859472), (112, 2502038), (121, 2315936), (154, 1819664), (176, 1592206), (196, 1429736), (211, 1328096), (224, 1251019), (242, 1157968), (308, 909832), (343, 816992), (352, 796103), (392, 714868), (422, 664048), (484, 578984), (539, 519904), (616, 454916), (686, 408496), (784, 357434), (844, 332024), (847, 330848), (968, 289492), (1078, 259952), (1232, 227458), (1372, 204248), (1477, 189728), (1568, 178717), (1688, 166012), (1694, 165424), (1936, 144746), (2156, 129976), (2321, 120736), (2464, 113729), (2744, 102124), (2954, 94864), (3376, 83006), (3388, 82712), (3773, 74272), (3872, 72373), (4312, 64988), (4642, 60368), (5488, 51062), (5908, 47432), (5929, 47264), (6752, 41503), (6776, 41356), (7546, 37136), (8624, 32494), (9284, 30184), (10339, 27104), (10976, 25531), (11816, 23716), (11858, 23632), (13552, 20678), (15092, 18568), (16247, 17248)]