六十一

答61:1,61, 62:1,2,31,62, 63:1,3,7,9,21,63, 64:1,2,4,8,16,32,64, 65:1,5,13,65, 66:1,2,3,6,11,22,33,66, 67:1,67, 68:1,2,4,17,34,68, 69:1,3,23,69, 70:1,2,5,7,10,14,35,70, 71:1,71, 72:1…