27878405

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1196

約数の個数: 16

約数和(自身を含む): 34535424

約数和(自身を除く): 6657019

約数列:

[1, 5, 43, 127, 215, 635, 1021, 5105, 5461, 27305, 43903, 129667, 219515, 648335, 5575681, 27878405]

約数ペア:

[(1, 27878405), (5, 5575681), (43, 648335), (127, 219515), (215, 129667), (635, 43903), (1021, 27305), (5105, 5461)]