Search a number
amenable n.  and  tau n.

First numbers that belong to both sets:

1, 8, 9, 12, 24, 36, 40, 56, 60, 72, 80, 84, 88, 96, 104, 108, 128, 132, 136, 152, 156, 180, 184, 204, 225, 228, 232, 240, 248, 252, 276, 288, 296, 328, 344, 348, 360, 372, 376, 384, 396, 424, 441, 444, 448, 468, 472, 480, 488, 492, 504, 516, 536, 560, 564, 568, 584, 600, 612, 625, 632, 636, 640, 664, 672, 684, 708, 712, 720, 732, 776, 792, 804, 808, 824, 828, 852, 856, 864, 872, 876, 880, 896, 904, 936, 948, 972, 996, 1016, 1040, 1044, 1048, 1056, 1068, 1089, 1096, 1112, 1116, 1152, 1164, 1176, 1192, 1200, 1208, 1212, 1224, 1236, 1248, 1256, 1260, 1284, 1304, 1308, 1332, 1336, 1344, 1356, 1360, 1368, 1384, 1408, 1432, 1440, 1448, 1476, 1520, 1521, 1524, 1528, 1544, 1548, 1572, 1576, 1592, 1620, 1632, 1644, 1656, 1664, 1668, 1680, 1688, 1692, 1784, 1788, 1800, 1812, 1816, 1824, 1832, 1840, 1864, 1884, 1908, 1912, 1920, 1928, 1944, 1956, 1980, 2000, 2004, 2008, 2016, 2025, 2056, 2076, 2088, 2104, 2124, 2148, 2152, 2160, 2168, 2172, 2176, 2196, 2208, 2216, 2232, 2240, 2248, 2264, 2292, 2316, 2320, 2340, 2344, 2364, 2388, 2412, 2432, 2456, 2480, 2488, 2504, 2532, 2536, 2556, 2560, 2601, 2628, 2640, 2648, 2664, 2676, 2688, 2696, 2700, 2724, 2748, 2772, 2776, 2784, 2792, 2796, 2824, 2844, 2868, 2872, 2892, 2904, 2936, 2944, 2952, 2960, 2976, 2984, 2988, 3012, 3032, 3060, 3064, 3084, 3096, 3112, 3120, 3156, 3168, 3176, 3204, 3208, 3228, 3240, 3249, 3252, 3272, 3276, 3280, 3324, 3352, 3360, 3368, 3372, 3384, 3396, 3420, 3440, 3448, 3456, 3464, 3492, 3512, 3516, 3528, 3544, 3552, 3592, 3600, 3636, 3656, 3684, 3688, 3704, 3708, 3712, 3732, 3736, 3744, 3756.

Some larger examples :