4997745

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 9434880

約数和(自身を除く): 4437135

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 139, 141, 153, 235, 255, 417, 423, 695, 705, 765, 799, 1251, 2085, 2115, 2363, 2397, 3995, 6255, 6533, 7089, 7191, 11815, 11985, 19599, 21267, 32665, 35445, 35955, 58797, 97995, 106335, 111061, 293985, 333183, 555305, 999549, 1665915, 4997745]

約数ペア:

[(1, 4997745), (3, 1665915), (5, 999549), (9, 555305), (15, 333183), (17, 293985), (45, 111061), (47, 106335), (51, 97995), (85, 58797), (139, 35955), (141, 35445), (153, 32665), (235, 21267), (255, 19599), (417, 11985), (423, 11815), (695, 7191), (705, 7089), (765, 6533), (799, 6255), (1251, 3995), (2085, 2397), (2115, 2363)]