1980787400

素因数分解:

$2^3\times 5^2\times {\mathrm{9903937}}^1$

素因数の和:9903953

約数の個数: 24

約数和(自身を含む): 4605331170

約数和(自身を除く): 2624543770

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 9903937, 19807874, 39615748, 49519685, 79231496, 99039370, 198078740, 247598425, 396157480, 495196850, 990393700, 1980787400]

約数ペア:

[(1, 1980787400), (2, 990393700), (4, 495196850), (5, 396157480), (8, 247598425), (10, 198078740), (20, 99039370), (25, 79231496), (40, 49519685), (50, 39615748), (100, 19807874), (200, 9903937)]