18720540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{104003}}^1$

素因数の和:104018

約数の個数: 36

約数和(自身を含む): 56786184

約数和(自身を除く): 38065644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 104003, 208006, 312009, 416012, 520015, 624018, 936027, 1040030, 1248036, 1560045, 1872054, 2080060, 3120090, 3744108, 4680135, 6240180, 9360270, 18720540]

約数ペア:

[(1, 18720540), (2, 9360270), (3, 6240180), (4, 4680135), (5, 3744108), (6, 3120090), (9, 2080060), (10, 1872054), (12, 1560045), (15, 1248036), (18, 1040030), (20, 936027), (30, 624018), (36, 520015), (45, 416012), (60, 312009), (90, 208006), (180, 104003)]