12390385

素因数分解:

$5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 17499456

約数和(自身を除く): 5109071

約数列:

[1, 5, 7, 35, 49, 103, 245, 491, 515, 721, 2455, 3437, 3605, 5047, 17185, 24059, 25235, 50573, 120295, 252865, 354011, 1770055, 2478077, 12390385]

約数ペア:

[(1, 12390385), (5, 2478077), (7, 1770055), (35, 354011), (49, 252865), (103, 120295), (245, 50573), (491, 25235), (515, 24059), (721, 17185), (2455, 5047), (3437, 3605)]