19486160

素因数分解:

$2^4\times 5^1\times {\mathrm{243577}}^1$

素因数の和:243590

約数の個数: 20

約数和(自身を含む): 45305508

約数和(自身を除く): 25819348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243577, 487154, 974308, 1217885, 1948616, 2435770, 3897232, 4871540, 9743080, 19486160]

約数ペア:

[(1, 19486160), (2, 9743080), (4, 4871540), (5, 3897232), (8, 2435770), (10, 1948616), (16, 1217885), (20, 974308), (40, 487154), (80, 243577)]