80015440

素因数分解:

$2^4\times 5^1\times {\mathrm{1000193}}^1$

素因数の和:1000206

約数の個数: 20

約数和(自身を含む): 186036084

約数和(自身を除く): 106020644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1000193, 2000386, 4000772, 5000965, 8001544, 10001930, 16003088, 20003860, 40007720, 80015440]

約数ペア:

[(1, 80015440), (2, 40007720), (4, 20003860), (5, 16003088), (8, 10001930), (10, 8001544), (16, 5000965), (20, 4000772), (40, 2000386), (80, 1000193)]