31214840

素因数分解:

$2^3\times 5^1\times {\mathrm{780371}}^1$

素因数の和:780382

約数の個数: 16

約数和(自身を含む): 70233480

約数和(自身を除く): 39018640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 780371, 1560742, 3121484, 3901855, 6242968, 7803710, 15607420, 31214840]

約数ペア:

[(1, 31214840), (2, 15607420), (4, 7803710), (5, 6242968), (8, 3901855), (10, 3121484), (20, 1560742), (40, 780371)]