638864525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{6709}}^1$

素因数の和:7025

約数の個数: 24

約数和(自身を含む): 856169160

約数和(自身を除く): 217304635

約数列:

[1, 5, 13, 25, 65, 293, 325, 1465, 3809, 6709, 7325, 19045, 33545, 87217, 95225, 167725, 436085, 1965737, 2180425, 9828685, 25554581, 49143425, 127772905, 638864525]

約数ペア:

[(1, 638864525), (5, 127772905), (13, 49143425), (25, 25554581), (65, 9828685), (293, 2180425), (325, 1965737), (1465, 436085), (3809, 167725), (6709, 95225), (7325, 87217), (19045, 33545)]