8443280

素因数分解:

$2^4\times 5^1\times {\mathrm{105541}}^1$

素因数の和:105554

約数の個数: 20

約数和(自身を含む): 19630812

約数和(自身を除く): 11187532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 105541, 211082, 422164, 527705, 844328, 1055410, 1688656, 2110820, 4221640, 8443280]

約数ペア:

[(1, 8443280), (2, 4221640), (4, 2110820), (5, 1688656), (8, 1055410), (10, 844328), (16, 527705), (20, 422164), (40, 211082), (80, 105541)]