I divisori di 199980 sono 72, elencati qui di seguito: 1; 2; 3; 4; 5; 6; 9; 10; 11; 12; 15; 18; 20; 22; 30; 33; 36; 44; 45; 55; 60; 66; 90; 99; 101; 110; 132; 165; 180; 198; 202; 220; 303; 330; 396; 404; 495; 505; 606; 660; 909; 990; 1010; 1111; 1212; 1515; 1818; 1980; 2020; 2222; 3030; 3333; 3636; 4444; 4545; 5555; 6060; 6666; 9090; 9999; 11110; 13332; 16665; 18180; 19998; 22220; 33330; 39996; 49995; 66660; 99990; 199980
199961, 199962, 199963, 199964, 199965, 199966, 199967, 199968, 199969, 199970, 199971, 199972, 199973, 199974, 199975, 199976, 199977, 199978, 199979, 199981, 199982, 199983, 199984, 199985, 199986, 199987, 199988, 199989, 199990, 199991, 199992, 199993, 199994, 199995, 199996, 199997, 199998, 199999