I divisori di 20131980 sono 144, elencati qui di seguito: 1; 2; 3; 4; 5; 6; 10; 11; 12; 15; 20; 22; 30; 33; 44; 47; 55; 59; 60; 66; 94; 110; 118; 121; 132; 141; 165; 177; 188; 220; 235; 236; 242; 282; 295; 330; 354; 363; 470; 484; 517; 564; 590; 605; 649; 660; 705; 708; 726; 885; 940; 1034; 1180; 1210; 1298; 1410; 1452; 1551; 1770; 1815; 1947; 2068; 2420; 2585; 2596; 2773; 2820; 3102; 3245; 3540; 3630; 3894; 5170; 5546; 5687; 6204; 6490; 7139; 7260; 7755; 7788; 8319; 9735; 10340; 11092; 11374; 12980; 13865; 14278; 15510; 16638; 17061; 19470; 21417; 22748; 27730; 28435; 28556; 30503; 31020; 33276; 34122; 35695; 38940; 41595; 42834; 55460; 56870; 61006; 68244; 71390; 83190; 85305; 85668; 91509; 107085; 113740; 122012; 142780; 152515; 166380; 170610; 183018; 214170; 305030; 335533; 341220; 366036; 428340; 457545; 610060; 671066; 915090; 1006599; 1342132; 1677665; 1830180; 2013198; 3355330; 4026396; 5032995; 6710660; 10065990; 20131980
20131961, 20131962, 20131963, 20131964, 20131965, 20131966, 20131967, 20131968, 20131969, 20131970, 20131971, 20131972, 20131973, 20131974, 20131975, 20131976, 20131977, 20131978, 20131979, 20131981, 20131982, 20131983, 20131984, 20131985, 20131986, 20131987, 20131988, 20131989, 20131990, 20131991, 20131992, 20131993, 20131994, 20131995, 20131996, 20131997, 20131998, 20131999