205252400

素因数分解:

$2^4\times 5^2\times {\mathrm{513131}}^1$

素因数の和:513149

約数の個数: 30

約数和(自身を含む): 493119852

約数和(自身を除く): 287867452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 513131, 1026262, 2052524, 2565655, 4105048, 5131310, 8210096, 10262620, 12828275, 20525240, 25656550, 41050480, 51313100, 102626200, 205252400]

約数ペア:

[(1, 205252400), (2, 102626200), (4, 51313100), (5, 41050480), (8, 25656550), (10, 20525240), (16, 12828275), (20, 10262620), (25, 8210096), (40, 5131310), (50, 4105048), (80, 2565655), (100, 2052524), (200, 1026262), (400, 513131)]