39970145

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:377

約数の個数: 24

約数和(自身を含む): 51576000

約数和(自身を除く): 11605855

約数列:

[1, 5, 17, 85, 139, 199, 289, 695, 995, 1445, 2363, 3383, 11815, 16915, 27661, 40171, 57511, 138305, 200855, 287555, 470237, 2351185, 7994029, 39970145]

約数ペア:

[(1, 39970145), (5, 7994029), (17, 2351185), (85, 470237), (139, 287555), (199, 200855), (289, 138305), (695, 57511), (995, 40171), (1445, 27661), (2363, 16915), (3383, 11815)]