19550425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 25920216

約数和(自身を除く): 6369791

約数列:

[1, 5, 17, 25, 85, 157, 293, 425, 785, 1465, 2669, 3925, 4981, 7325, 13345, 24905, 46001, 66725, 124525, 230005, 782017, 1150025, 3910085, 19550425]

約数ペア:

[(1, 19550425), (5, 3910085), (17, 1150025), (25, 782017), (85, 230005), (157, 124525), (293, 66725), (425, 46001), (785, 24905), (1465, 13345), (2669, 7325), (3925, 4981)]