28122248

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 66769920

約数和(自身を除く): 38647672

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 497, 568, 616, 643, 781, 994, 1286, 1562, 1988, 2572, 3124, 3976, 4501, 5144, 5467, 6248, 7073, 9002, 10934, 14146, 18004, 21868, 28292, 36008, 43736, 45653, 49511, 56584, 91306, 99022, 182612, 198044, 319571, 365224, 396088, 502183, 639142, 1004366, 1278284, 2008732, 2556568, 3515281, 4017464, 7030562, 14061124, 28122248]

約数ペア:

[(1, 28122248), (2, 14061124), (4, 7030562), (7, 4017464), (8, 3515281), (11, 2556568), (14, 2008732), (22, 1278284), (28, 1004366), (44, 639142), (56, 502183), (71, 396088), (77, 365224), (88, 319571), (142, 198044), (154, 182612), (284, 99022), (308, 91306), (497, 56584), (568, 49511), (616, 45653), (643, 43736), (781, 36008), (994, 28292), (1286, 21868), (1562, 18004), (1988, 14146), (2572, 10934), (3124, 9002), (3976, 7073), (4501, 6248), (5144, 5467)]