199428080

素因数分解:

$2^4\times 5^1\times {\mathrm{2492851}}^1$

素因数の和:2492864

約数の個数: 20

約数和(自身を含む): 463670472

約数和(自身を除く): 264242392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2492851, 4985702, 9971404, 12464255, 19942808, 24928510, 39885616, 49857020, 99714040, 199428080]

約数ペア:

[(1, 199428080), (2, 99714040), (4, 49857020), (5, 39885616), (8, 24928510), (10, 19942808), (16, 12464255), (20, 9971404), (40, 4985702), (80, 2492851)]