8217680

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{739}}^1$

素因数の和:891

約数の個数: 40

約数和(自身を含む): 19269600

約数和(自身を除く): 11051920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 739, 1112, 1390, 1478, 2224, 2780, 2956, 3695, 5560, 5912, 7390, 11120, 11824, 14780, 29560, 59120, 102721, 205442, 410884, 513605, 821768, 1027210, 1643536, 2054420, 4108840, 8217680]

約数ペア:

[(1, 8217680), (2, 4108840), (4, 2054420), (5, 1643536), (8, 1027210), (10, 821768), (16, 513605), (20, 410884), (40, 205442), (80, 102721), (139, 59120), (278, 29560), (556, 14780), (695, 11824), (739, 11120), (1112, 7390), (1390, 5912), (1478, 5560), (2224, 3695), (2780, 2956)]