28701575

素因数分解:

$5^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 40875360

約数和(自身を除く): 12173785

約数列:

[1, 5, 7, 25, 35, 175, 401, 409, 2005, 2045, 2807, 2863, 10025, 10225, 14035, 14315, 70175, 71575, 164009, 820045, 1148063, 4100225, 5740315, 28701575]

約数ペア:

[(1, 28701575), (5, 5740315), (7, 4100225), (25, 1148063), (35, 820045), (175, 164009), (401, 71575), (409, 70175), (2005, 14315), (2045, 14035), (2807, 10225), (2863, 10025)]