28909496

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:756

約数の個数: 64

約数和(自身を含む): 68636160

約数和(自身を除く): 39726664

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 497, 568, 616, 661, 781, 994, 1322, 1562, 1988, 2644, 3124, 3976, 4627, 5288, 5467, 6248, 7271, 9254, 10934, 14542, 18508, 21868, 29084, 37016, 43736, 46931, 50897, 58168, 93862, 101794, 187724, 203588, 328517, 375448, 407176, 516241, 657034, 1032482, 1314068, 2064964, 2628136, 3613687, 4129928, 7227374, 14454748, 28909496]

約数ペア:

[(1, 28909496), (2, 14454748), (4, 7227374), (7, 4129928), (8, 3613687), (11, 2628136), (14, 2064964), (22, 1314068), (28, 1032482), (44, 657034), (56, 516241), (71, 407176), (77, 375448), (88, 328517), (142, 203588), (154, 187724), (284, 101794), (308, 93862), (497, 58168), (568, 50897), (616, 46931), (661, 43736), (781, 37016), (994, 29084), (1322, 21868), (1562, 18508), (1988, 14542), (2644, 10934), (3124, 9254), (3976, 7271), (4627, 6248), (5288, 5467)]