20894800

素因数分解:

$2^4\times 5^2\times {\mathrm{52237}}^1$

素因数の和:52255

約数の個数: 30

約数和(自身を含む): 50200718

約数和(自身を除く): 29305918

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52237, 104474, 208948, 261185, 417896, 522370, 835792, 1044740, 1305925, 2089480, 2611850, 4178960, 5223700, 10447400, 20894800]

約数ペア:

[(1, 20894800), (2, 10447400), (4, 5223700), (5, 4178960), (8, 2611850), (10, 2089480), (16, 1305925), (20, 1044740), (25, 835792), (40, 522370), (50, 417896), (80, 261185), (100, 208948), (200, 104474), (400, 52237)]