80443280

素因数分解:

$2^4\times 5^1\times {\mathrm{1005541}}^1$

素因数の和:1005554

約数の個数: 20

約数和(自身を含む): 187030812

約数和(自身を除く): 106587532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1005541, 2011082, 4022164, 5027705, 8044328, 10055410, 16088656, 20110820, 40221640, 80443280]

約数ペア:

[(1, 80443280), (2, 40221640), (4, 20110820), (5, 16088656), (8, 10055410), (10, 8044328), (16, 5027705), (20, 4022164), (40, 2011082), (80, 1005541)]