A069550 Squarefree part of n equals bigomega(n).

12, 27, 75, 80, 96, 147, 180, 216, 363, 405, 448, 486, 500, 507, 600, 867, 980, 1008, 1083, 1125, 1176, 1350, 1587, 2205, 2268, 2420, 2523, 2560, 2646, 2800, 2883, 2904, 3125, 3380, 3750, 4056, 4107, 5043, 5103, 5445, 5488, 5547, 5760, 5780, 6125, 6300