218975080

素因数分解:

$2^3\times 5^1\times {\mathrm{5474377}}^1$

素因数の和:5474388

約数の個数: 16

約数和(自身を含む): 492694020

約数和(自身を除く): 273718940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5474377, 10948754, 21897508, 27371885, 43795016, 54743770, 109487540, 218975080]

約数ペア:

[(1, 218975080), (2, 109487540), (4, 54743770), (5, 43795016), (8, 27371885), (10, 21897508), (20, 10948754), (40, 5474377)]