81864088

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{237977}}^1$

素因数の和:238026

約数の個数: 16

約数和(自身を含む): 157065480

約数和(自身を除く): 75201392

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 237977, 475954, 951908, 1903816, 10233011, 20466022, 40932044, 81864088]

約数ペア:

[(1, 81864088), (2, 40932044), (4, 20466022), (8, 10233011), (43, 1903816), (86, 951908), (172, 475954), (344, 237977)]