81020944

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{117763}}^1$

素因数の和:117814

約数の個数: 20

約数和(自身を含む): 160630096

約数和(自身を除く): 79609152

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 117763, 235526, 471052, 942104, 1884208, 5063809, 10127618, 20255236, 40510472, 81020944]

約数ペア:

[(1, 81020944), (2, 40510472), (4, 20255236), (8, 10127618), (16, 5063809), (43, 1884208), (86, 942104), (172, 471052), (344, 235526), (688, 117763)]