21950800

素因数分解:

$2^4\times 5^2\times {\mathrm{54877}}^1$

素因数の和:54895

約数の個数: 30

約数和(自身を含む): 52737758

約数和(自身を除く): 30786958

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54877, 109754, 219508, 274385, 439016, 548770, 878032, 1097540, 1371925, 2195080, 2743850, 4390160, 5487700, 10975400, 21950800]

約数ペア:

[(1, 21950800), (2, 10975400), (4, 5487700), (5, 4390160), (8, 2743850), (10, 2195080), (16, 1371925), (20, 1097540), (25, 878032), (40, 548770), (50, 439016), (80, 274385), (100, 219508), (200, 109754), (400, 54877)]