19939860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110777}}^1$

素因数の和:110792

約数の個数: 36

約数和(自身を含む): 60484788

約数和(自身を除く): 40544928

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110777, 221554, 332331, 443108, 553885, 664662, 996993, 1107770, 1329324, 1661655, 1993986, 2215540, 3323310, 3987972, 4984965, 6646620, 9969930, 19939860]

約数ペア:

[(1, 19939860), (2, 9969930), (3, 6646620), (4, 4984965), (5, 3987972), (6, 3323310), (9, 2215540), (10, 1993986), (12, 1661655), (15, 1329324), (18, 1107770), (20, 996993), (30, 664662), (36, 553885), (45, 443108), (60, 332331), (90, 221554), (180, 110777)]