55040240

素因数分解:

$2^4\times 5^1\times {\mathrm{688003}}^1$

素因数の和:688016

約数の個数: 20

約数和(自身を含む): 127968744

約数和(自身を除く): 72928504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 688003, 1376006, 2752012, 3440015, 5504024, 6880030, 11008048, 13760060, 27520120, 55040240]

約数ペア:

[(1, 55040240), (2, 27520120), (4, 13760060), (5, 11008048), (8, 6880030), (10, 5504024), (16, 3440015), (20, 2752012), (40, 1376006), (80, 688003)]