1998193792

素因数分解:

$2^7\times 7^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:478

約数の個数: 128

約数和(自身を含む): 4668531840

約数和(自身を除く): 2670338048

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 83, 97, 112, 128, 166, 194, 224, 277, 332, 388, 448, 554, 581, 664, 679, 776, 896, 1108, 1162, 1328, 1358, 1552, 1939, 2216, 2324, 2656, 2716, 3104, 3878, 4432, 4648, 5312, 5432, 6208, 7756, 8051, 8864, 9296, 10624, 10864, 12416, 15512, 16102, 17728, 18592, 21728, 22991, 26869, 31024, 32204, 35456, 37184, 43456, 45982, 53738, 56357, 62048, 64408, 74368, 86912, 91964, 107476, 112714, 124096, 128816, 160937, 183928, 188083, 214952, 225428, 248192, 257632, 321874, 367856, 376166, 429904, 450856, 515264, 643748, 735712, 752332, 859808, 901712, 1030528, 1287496, 1471424, 1504664, 1719616, 1803424, 2230127, 2574992, 2942848, 3009328, 3439232, 3606848, 4460254, 5149984, 6018656, 7213696, 8920508, 10299968, 12037312, 15610889, 17841016, 20599936, 24074624, 31221778, 35682032, 62443556, 71364064, 124887112, 142728128, 249774224, 285456256, 499548448, 999096896, 1998193792]

約数ペア:

[(1, 1998193792), (2, 999096896), (4, 499548448), (7, 285456256), (8, 249774224), (14, 142728128), (16, 124887112), (28, 71364064), (32, 62443556), (56, 35682032), (64, 31221778), (83, 24074624), (97, 20599936), (112, 17841016), (128, 15610889), (166, 12037312), (194, 10299968), (224, 8920508), (277, 7213696), (332, 6018656), (388, 5149984), (448, 4460254), (554, 3606848), (581, 3439232), (664, 3009328), (679, 2942848), (776, 2574992), (896, 2230127), (1108, 1803424), (1162, 1719616), (1328, 1504664), (1358, 1471424), (1552, 1287496), (1939, 1030528), (2216, 901712), (2324, 859808), (2656, 752332), (2716, 735712), (3104, 643748), (3878, 515264), (4432, 450856), (4648, 429904), (5312, 376166), (5432, 367856), (6208, 321874), (7756, 257632), (8051, 248192), (8864, 225428), (9296, 214952), (10624, 188083), (10864, 183928), (12416, 160937), (15512, 128816), (16102, 124096), (17728, 112714), (18592, 107476), (21728, 91964), (22991, 86912), (26869, 74368), (31024, 64408), (32204, 62048), (35456, 56357), (37184, 53738), (43456, 45982)]