28278895

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{293}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 34574400

約数和(自身を除く): 6295505

約数列:

[1, 5, 97, 199, 293, 485, 995, 1465, 19303, 28421, 58307, 96515, 142105, 291535, 5655779, 28278895]

約数ペア:

[(1, 28278895), (5, 5655779), (97, 291535), (199, 142105), (293, 96515), (485, 58307), (995, 28421), (1465, 19303)]