81134330

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{20233}}^1$

素因数の和:20641

約数の個数: 16

約数和(自身を含む): 146413224

約数和(自身を除く): 65278894

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 20233, 40466, 101165, 202330, 8113433, 16226866, 40567165, 81134330]

約数ペア:

[(1, 81134330), (2, 40567165), (5, 16226866), (10, 8113433), (401, 202330), (802, 101165), (2005, 40466), (4010, 20233)]