208291785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{24841}}^1$

素因数の和:24905

約数の個数: 32

約数和(自身を含む): 367264128

約数和(自身を除く): 158972343

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 8385, 24841, 74523, 124205, 322933, 372615, 968799, 1068163, 1614665, 3204489, 4843995, 5340815, 13886119, 16022445, 41658357, 69430595, 208291785]

約数ペア:

[(1, 208291785), (3, 69430595), (5, 41658357), (13, 16022445), (15, 13886119), (39, 5340815), (43, 4843995), (65, 3204489), (129, 1614665), (195, 1068163), (215, 968799), (559, 372615), (645, 322933), (1677, 124205), (2795, 74523), (8385, 24841)]