208064720

素因数分解:

$2^4\times 5^1\times {\mathrm{2600809}}^1$

素因数の和:2600822

約数の個数: 20

約数和(自身を含む): 483750660

約数和(自身を除く): 275685940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2600809, 5201618, 10403236, 13004045, 20806472, 26008090, 41612944, 52016180, 104032360, 208064720]

約数ペア:

[(1, 208064720), (2, 104032360), (4, 52016180), (5, 41612944), (8, 26008090), (10, 20806472), (16, 13004045), (20, 10403236), (40, 5201618), (80, 2600809)]