20150155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1938

約数の個数: 16

約数和(自身を含む): 25325568

約数和(自身を除く): 5175413

約数列:

[1, 5, 31, 71, 155, 355, 1831, 2201, 9155, 11005, 56761, 130001, 283805, 650005, 4030031, 20150155]

約数ペア:

[(1, 20150155), (5, 4030031), (31, 650005), (71, 283805), (155, 130001), (355, 56761), (1831, 11005), (2201, 9155)]