28525815

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3889}}^1$

素因数の和:4063

約数の個数: 24

約数和(自身を含む): 49760880

約数和(自身を除く): 21235065

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 3889, 7335, 11667, 19445, 35001, 58335, 175005, 633907, 1901721, 3169535, 5705163, 9508605, 28525815]

約数ペア:

[(1, 28525815), (3, 9508605), (5, 5705163), (9, 3169535), (15, 1901721), (45, 633907), (163, 175005), (489, 58335), (815, 35001), (1467, 19445), (2445, 11667), (3889, 7335)]