206468025

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{16889}}^1$

素因数の和:17065

約数の個数: 24

約数和(自身を含む): 343475040

約数和(自身を除く): 137007015

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 2445, 4075, 12225, 16889, 50667, 84445, 253335, 422225, 1266675, 2752907, 8258721, 13764535, 41293605, 68822675, 206468025]

約数ペア:

[(1, 206468025), (3, 68822675), (5, 41293605), (15, 13764535), (25, 8258721), (75, 2752907), (163, 1266675), (489, 422225), (815, 253335), (2445, 84445), (4075, 50667), (12225, 16889)]