79916120

素因数分解:

$2^3\times 5^1\times {\mathrm{1997903}}^1$

素因数の和:1997914

約数の個数: 16

約数和(自身を含む): 179811360

約数和(自身を除く): 99895240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1997903, 3995806, 7991612, 9989515, 15983224, 19979030, 39958060, 79916120]

約数ペア:

[(1, 79916120), (2, 39958060), (4, 19979030), (5, 15983224), (8, 9989515), (10, 7991612), (20, 3995806), (40, 1997903)]