39978068

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{5531}}^1$

素因数の和:5687

約数の個数: 24

約数和(自身を含む): 75899040

約数和(自身を除く): 35920972

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 3614, 5531, 7228, 11062, 22124, 71903, 143806, 287612, 768809, 1537618, 3075236, 9994517, 19989034, 39978068]

約数ペア:

[(1, 39978068), (2, 19989034), (4, 9994517), (13, 3075236), (26, 1537618), (52, 768809), (139, 287612), (278, 143806), (556, 71903), (1807, 22124), (3614, 11062), (5531, 7228)]