80280560

素因数分解:

$2^4\times 5^1\times {\mathrm{1003507}}^1$

素因数の和:1003520

約数の個数: 20

約数和(自身を含む): 186652488

約数和(自身を除く): 106371928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1003507, 2007014, 4014028, 5017535, 8028056, 10035070, 16056112, 20070140, 40140280, 80280560]

約数ペア:

[(1, 80280560), (2, 40140280), (4, 20070140), (5, 16056112), (8, 10035070), (10, 8028056), (16, 5017535), (20, 4014028), (40, 2007014), (80, 1003507)]