20425100

素因数分解:

$2^2\times 5^2\times {\mathrm{204251}}^1$

素因数の和:204265

約数の個数: 18

約数和(自身を含む): 44322684

約数和(自身を除く): 23897584

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 204251, 408502, 817004, 1021255, 2042510, 4085020, 5106275, 10212550, 20425100]

約数ペア:

[(1, 20425100), (2, 10212550), (4, 5106275), (5, 4085020), (10, 2042510), (20, 1021255), (25, 817004), (50, 408502), (100, 204251)]