19703940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1667}}^1$

素因数の和:1876

約数の個数: 48

約数和(自身を含む): 55484352

約数和(自身を除く): 35780412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 197, 394, 591, 788, 985, 1182, 1667, 1970, 2364, 2955, 3334, 3940, 5001, 5910, 6668, 8335, 10002, 11820, 16670, 20004, 25005, 33340, 50010, 100020, 328399, 656798, 985197, 1313596, 1641995, 1970394, 3283990, 3940788, 4925985, 6567980, 9851970, 19703940]

約数ペア:

[(1, 19703940), (2, 9851970), (3, 6567980), (4, 4925985), (5, 3940788), (6, 3283990), (10, 1970394), (12, 1641995), (15, 1313596), (20, 985197), (30, 656798), (60, 328399), (197, 100020), (394, 50010), (591, 33340), (788, 25005), (985, 20004), (1182, 16670), (1667, 11820), (1970, 10002), (2364, 8335), (2955, 6668), (3334, 5910), (3940, 5001)]