1398085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 1831536

約数和(自身を除く): 433451

約数列:

[1, 5, 13, 65, 137, 157, 685, 785, 1781, 2041, 8905, 10205, 21509, 107545, 279617, 1398085]

約数ペア:

[(1, 1398085), (5, 279617), (13, 107545), (65, 21509), (137, 10205), (157, 8905), (685, 2041), (785, 1781)]