204500

素因数分解:

$2^2\times 5^3\times {\mathrm{409}}^1$

素因数の和:428

約数の個数: 24

約数和(自身を含む): 447720

約数和(自身を除く): 243220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 409, 500, 818, 1636, 2045, 4090, 8180, 10225, 20450, 40900, 51125, 102250, 204500]

約数ペア:

[(1, 204500), (2, 102250), (4, 51125), (5, 40900), (10, 20450), (20, 10225), (25, 8180), (50, 4090), (100, 2045), (125, 1636), (250, 818), (409, 500)]