20165354864

素因数分解:

$2^4\times {\mathrm{2441}}^1\times {\mathrm{516319}}^1$

素因数の和:518768

約数の個数: 20

約数和(自身を含む): 39086456640

約数和(自身を除く): 18921101776

約数列:

[1, 2, 4, 8, 16, 2441, 4882, 9764, 19528, 39056, 516319, 1032638, 2065276, 4130552, 8261104, 1260334679, 2520669358, 5041338716, 10082677432, 20165354864]

約数ペア:

[(1, 20165354864), (2, 10082677432), (4, 5041338716), (8, 2520669358), (16, 1260334679), (2441, 8261104), (4882, 4130552), (9764, 2065276), (19528, 1032638), (39056, 516319)]