220504640

素因数分解:

$2^6\times 5^1\times {\mathrm{689077}}^1$

素因数の和:689094

約数の個数: 28

約数和(自身を含む): 525077436

約数和(自身を除く): 304572796

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 689077, 1378154, 2756308, 3445385, 5512616, 6890770, 11025232, 13781540, 22050464, 27563080, 44100928, 55126160, 110252320, 220504640]

約数ペア:

[(1, 220504640), (2, 110252320), (4, 55126160), (5, 44100928), (8, 27563080), (10, 22050464), (16, 13781540), (20, 11025232), (32, 6890770), (40, 5512616), (64, 3445385), (80, 2756308), (160, 1378154), (320, 689077)]