208220385

素因数分解:

$3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{241}}^2$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 335940480

約数和(自身を除く): 127720095

約数列:

[1, 3, 5, 15, 239, 241, 717, 723, 1195, 1205, 3585, 3615, 57599, 58081, 172797, 174243, 287995, 290405, 863985, 871215, 13881359, 41644077, 69406795, 208220385]

約数ペア:

[(1, 208220385), (3, 69406795), (5, 41644077), (15, 13881359), (239, 871215), (241, 863985), (717, 290405), (723, 287995), (1195, 174243), (1205, 172797), (3585, 58081), (3615, 57599)]