I divisori di 12311990 sono 8, elencati qui di seguito: 1; 2; 5; 10; 1231199; 2462398; 6155995; 12311990
12311971, 12311972, 12311973, 12311974, 12311975, 12311976, 12311977, 12311978, 12311979, 12311980, 12311981, 12311982, 12311983, 12311984, 12311985, 12311986, 12311987, 12311988, 12311989, 12311991, 12311992, 12311993, 12311994, 12311995, 12311996, 12311997, 12311998, 12311999, 12312000, 12312001, 12312002, 12312003, 12312004, 12312005, 12312006, 12312007, 12312008, 12312009