688842

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:104

約数の個数: 72

約数和(自身を含む): 1920672

約数和(自身を除く): 1231830

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 49, 63, 66, 71, 77, 98, 99, 126, 142, 147, 154, 198, 213, 231, 294, 426, 441, 462, 497, 539, 639, 693, 781, 882, 994, 1078, 1278, 1386, 1491, 1562, 1617, 2343, 2982, 3234, 3479, 4473, 4686, 4851, 5467, 6958, 7029, 8946, 9702, 10437, 10934, 14058, 16401, 20874, 31311, 32802, 38269, 49203, 62622, 76538, 98406, 114807, 229614, 344421, 688842]

約数ペア:

[(1, 688842), (2, 344421), (3, 229614), (6, 114807), (7, 98406), (9, 76538), (11, 62622), (14, 49203), (18, 38269), (21, 32802), (22, 31311), (33, 20874), (42, 16401), (49, 14058), (63, 10934), (66, 10437), (71, 9702), (77, 8946), (98, 7029), (99, 6958), (126, 5467), (142, 4851), (147, 4686), (154, 4473), (198, 3479), (213, 3234), (231, 2982), (294, 2343), (426, 1617), (441, 1562), (462, 1491), (497, 1386), (539, 1278), (639, 1078), (693, 994), (781, 882)]