80495440

素因数分解:

$2^4\times 5^1\times {\mathrm{1006193}}^1$

素因数の和:1006206

約数の個数: 20

約数和(自身を含む): 187152084

約数和(自身を除く): 106656644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1006193, 2012386, 4024772, 5030965, 8049544, 10061930, 16099088, 20123860, 40247720, 80495440]

約数ペア:

[(1, 80495440), (2, 40247720), (4, 20123860), (5, 16099088), (8, 10061930), (10, 8049544), (16, 5030965), (20, 4024772), (40, 2012386), (80, 1006193)]