80872040

素因数分解:

$2^3\times 5^1\times {\mathrm{2021801}}^1$

素因数の和:2021812

約数の個数: 16

約数和(自身を含む): 181962180

約数和(自身を除く): 101090140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2021801, 4043602, 8087204, 10109005, 16174408, 20218010, 40436020, 80872040]

約数ペア:

[(1, 80872040), (2, 40436020), (4, 20218010), (5, 16174408), (8, 10109005), (10, 8087204), (20, 4043602), (40, 2021801)]