639266936

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{21179}}^1$

素因数の和:21217

約数の個数: 64

約数和(自身を含む): 1524960000

約数和(自身を除く): 885693064

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 343, 392, 539, 616, 686, 1078, 1372, 2156, 2744, 3773, 4312, 7546, 15092, 21179, 30184, 42358, 84716, 148253, 169432, 232969, 296506, 465938, 593012, 931876, 1037771, 1186024, 1630783, 1863752, 2075542, 3261566, 4151084, 6523132, 7264397, 8302168, 11415481, 13046264, 14528794, 22830962, 29057588, 45661924, 58115176, 79908367, 91323848, 159816734, 319633468, 639266936]

約数ペア:

[(1, 639266936), (2, 319633468), (4, 159816734), (7, 91323848), (8, 79908367), (11, 58115176), (14, 45661924), (22, 29057588), (28, 22830962), (44, 14528794), (49, 13046264), (56, 11415481), (77, 8302168), (88, 7264397), (98, 6523132), (154, 4151084), (196, 3261566), (308, 2075542), (343, 1863752), (392, 1630783), (539, 1186024), (616, 1037771), (686, 931876), (1078, 593012), (1372, 465938), (2156, 296506), (2744, 232969), (3773, 169432), (4312, 148253), (7546, 84716), (15092, 42358), (21179, 30184)]