20098385

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1021}}^1$

素因数の和:1184

約数の個数: 16

約数和(自身を含む): 25116672

約数和(自身を除く): 5018287

約数列:

[1, 5, 31, 127, 155, 635, 1021, 3937, 5105, 19685, 31651, 129667, 158255, 648335, 4019677, 20098385]

約数ペア:

[(1, 20098385), (5, 4019677), (31, 648335), (127, 158255), (155, 129667), (635, 31651), (1021, 19685), (3937, 5105)]