20640090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{688003}}^1$

素因数の和:688013

約数の個数: 16

約数和(自身を含む): 49536288

約数和(自身を除く): 28896198

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 688003, 1376006, 2064009, 3440015, 4128018, 6880030, 10320045, 20640090]

約数ペア:

[(1, 20640090), (2, 10320045), (3, 6880030), (5, 4128018), (6, 3440015), (10, 2064009), (15, 1376006), (30, 688003)]