221566160

素因数分解:

$2^4\times 5^1\times {\mathrm{2769577}}^1$

素因数の和:2769590

約数の個数: 20

約数和(自身を含む): 515141508

約数和(自身を除く): 293575348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2769577, 5539154, 11078308, 13847885, 22156616, 27695770, 44313232, 55391540, 110783080, 221566160]

約数ペア:

[(1, 221566160), (2, 110783080), (4, 55391540), (5, 44313232), (8, 27695770), (10, 22156616), (16, 13847885), (20, 11078308), (40, 5539154), (80, 2769577)]