79972240

素因数分解:

$2^4\times 5^1\times {\mathrm{999653}}^1$

素因数の和:999666

約数の個数: 20

約数和(自身を含む): 185935644

約数和(自身を除く): 105963404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 999653, 1999306, 3998612, 4998265, 7997224, 9996530, 15994448, 19993060, 39986120, 79972240]

約数ペア:

[(1, 79972240), (2, 39986120), (4, 19993060), (5, 15994448), (8, 9996530), (10, 7997224), (16, 4998265), (20, 3998612), (40, 1999306), (80, 999653)]