8205040

素因数分解:

$2^4\times 5^1\times {\mathrm{102563}}^1$

素因数の和:102576

約数の個数: 20

約数和(自身を含む): 19076904

約数和(自身を除く): 10871864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 102563, 205126, 410252, 512815, 820504, 1025630, 1641008, 2051260, 4102520, 8205040]

約数ペア:

[(1, 8205040), (2, 4102520), (4, 2051260), (5, 1641008), (8, 1025630), (10, 820504), (16, 512815), (20, 410252), (40, 205126), (80, 102563)]