86697775

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 110322800

約数和(自身を除く): 23625025

約数列:

[1, 5, 25, 61, 139, 305, 409, 695, 1525, 2045, 3475, 8479, 10225, 24949, 42395, 56851, 124745, 211975, 284255, 623725, 1421275, 3467911, 17339555, 86697775]

約数ペア:

[(1, 86697775), (5, 17339555), (25, 3467911), (61, 1421275), (139, 623725), (305, 284255), (409, 211975), (695, 124745), (1525, 56851), (2045, 42395), (3475, 24949), (8479, 10225)]