12956975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 17431920

約数和(自身を除く): 4474945

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 709, 731, 1075, 3545, 3655, 12053, 17725, 18275, 30487, 60265, 152435, 301325, 518279, 762175, 2591395, 12956975]

約数ペア:

[(1, 12956975), (5, 2591395), (17, 762175), (25, 518279), (43, 301325), (85, 152435), (215, 60265), (425, 30487), (709, 18275), (731, 17725), (1075, 12053), (3545, 3655)]