20766160

素因数分解:

$2^4\times 5^1\times {\mathrm{259577}}^1$

素因数の和:259590

約数の個数: 20

約数和(自身を含む): 48281508

約数和(自身を除く): 27515348

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 259577, 519154, 1038308, 1297885, 2076616, 2595770, 4153232, 5191540, 10383080, 20766160]

約数ペア:

[(1, 20766160), (2, 10383080), (4, 5191540), (5, 4153232), (8, 2595770), (10, 2076616), (16, 1297885), (20, 1038308), (40, 519154), (80, 259577)]