23 × 5 × 23 × 672103
1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 672103, 1344206, 2688412, 3360515, 5376824, 6721030, 13442060, 15458369, 26884120, 30916738, 61833476, 77291845, 123666952, 154583690, 309167380 and 618334760
No.
Its nearest Fibonacci number neighbors are 433494437 and 701408733.