21588080

素因数分解:

$2^4\times 5^1\times {\mathrm{269851}}^1$

素因数の和:269864

約数の個数: 20

約数和(自身を含む): 50192472

約数和(自身を除く): 28604392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269851, 539702, 1079404, 1349255, 2158808, 2698510, 4317616, 5397020, 10794040, 21588080]

約数ペア:

[(1, 21588080), (2, 10794040), (4, 5397020), (5, 4317616), (8, 2698510), (10, 2158808), (16, 1349255), (20, 1079404), (40, 539702), (80, 269851)]