20659115

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{743}}^1$

素因数の和:898

約数の個数: 16

約数和(自身を含む): 25498368

約数和(自身を除く): 4839253

約数列:

[1, 5, 67, 83, 335, 415, 743, 3715, 5561, 27805, 49781, 61669, 248905, 308345, 4131823, 20659115]

約数ペア:

[(1, 20659115), (5, 4131823), (67, 308345), (83, 248905), (335, 61669), (415, 49781), (743, 27805), (3715, 5561)]