80818520

素因数分解:

$2^3\times 5^1\times {\mathrm{2020463}}^1$

素因数の和:2020474

約数の個数: 16

約数和(自身を含む): 181841760

約数和(自身を除く): 101023240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2020463, 4040926, 8081852, 10102315, 16163704, 20204630, 40409260, 80818520]

約数ペア:

[(1, 80818520), (2, 40409260), (4, 20204630), (5, 16163704), (8, 10102315), (10, 8081852), (20, 4040926), (40, 2020463)]