20652400

素因数分解:

$2^4\times 5^2\times {\mathrm{51631}}^1$

素因数の和:51649

約数の個数: 30

約数和(自身を含む): 49618352

約数和(自身を除く): 28965952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51631, 103262, 206524, 258155, 413048, 516310, 826096, 1032620, 1290775, 2065240, 2581550, 4130480, 5163100, 10326200, 20652400]

約数ペア:

[(1, 20652400), (2, 10326200), (4, 5163100), (5, 4130480), (8, 2581550), (10, 2065240), (16, 1290775), (20, 1032620), (25, 826096), (40, 516310), (50, 413048), (80, 258155), (100, 206524), (200, 103262), (400, 51631)]