I divisori di 10001990 sono 8, elencati qui di seguito: 1; 2; 5; 10; 1000199; 2000398; 5000995; 10001990
10001971, 10001972, 10001973, 10001974, 10001975, 10001976, 10001977, 10001978, 10001979, 10001980, 10001981, 10001982, 10001983, 10001984, 10001985, 10001986, 10001987, 10001988, 10001989, 10001991, 10001992, 10001993, 10001994, 10001995, 10001996, 10001997, 10001998, 10001999, 10002000, 10002001, 10002002, 10002003, 10002004, 10002005, 10002006, 10002007, 10002008, 10002009