20154800

素因数分解:

$2^4\times 5^2\times {\mathrm{50387}}^1$

素因数の和:50405

約数の個数: 30

約数和(自身を含む): 48422868

約数和(自身を除く): 28268068

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50387, 100774, 201548, 251935, 403096, 503870, 806192, 1007740, 1259675, 2015480, 2519350, 4030960, 5038700, 10077400, 20154800]

約数ペア:

[(1, 20154800), (2, 10077400), (4, 5038700), (5, 4030960), (8, 2519350), (10, 2015480), (16, 1259675), (20, 1007740), (25, 806192), (40, 503870), (50, 403096), (80, 251935), (100, 201548), (200, 100774), (400, 50387)]