389385

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 716040

約数和(自身を除く): 326655

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 509, 765, 1527, 2545, 4581, 7635, 8653, 22905, 25959, 43265, 77877, 129795, 389385]

約数ペア:

[(1, 389385), (3, 129795), (5, 77877), (9, 43265), (15, 25959), (17, 22905), (45, 8653), (51, 7635), (85, 4581), (153, 2545), (255, 1527), (509, 765)]