667845

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:131

約数の個数: 40

約数和(自身を含む): 1280664

約数和(自身を除く): 612819

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 97, 135, 153, 255, 291, 405, 459, 485, 765, 873, 1377, 1455, 1649, 2295, 2619, 4365, 4947, 6885, 7857, 8245, 13095, 14841, 24735, 39285, 44523, 74205, 133569, 222615, 667845]

約数ペア:

[(1, 667845), (3, 222615), (5, 133569), (9, 74205), (15, 44523), (17, 39285), (27, 24735), (45, 14841), (51, 13095), (81, 8245), (85, 7857), (97, 6885), (135, 4947), (153, 4365), (255, 2619), (291, 2295), (405, 1649), (459, 1455), (485, 1377), (765, 873)]