28231225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{409}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 38435040

約数和(自身を除く): 10203815

約数列:

[1, 5, 11, 25, 55, 251, 275, 409, 1255, 2045, 2761, 4499, 6275, 10225, 13805, 22495, 69025, 102659, 112475, 513295, 1129249, 2566475, 5646245, 28231225]

約数ペア:

[(1, 28231225), (5, 5646245), (11, 2566475), (25, 1129249), (55, 513295), (251, 112475), (275, 102659), (409, 69025), (1255, 22495), (2045, 13805), (2761, 10225), (4499, 6275)]