A069169 Nonprimes n such that sigma(n)*sum(d|n,1/sigma(d)) is an integer.

1, 6, 10, 14, 15, 18, 21, 22, 26, 28, 30, 33, 34, 35, 38, 39, 40, 42, 46, 51, 52, 55, 57, 58, 62, 65, 66, 69, 70, 74, 76, 77, 78, 82, 84, 85, 86, 87, 90, 91, 93, 94, 95, 102, 105, 106, 110, 111, 114, 115, 118, 119, 120, 122, 123, 124, 126, 129, 130, 133, 134, 138, 140