20123170705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{20593}}^1$

素因数の和:20881

約数の個数: 32

約数和(自身を含む): 26749134720

約数和(自身を除く): 6625964015

約数列:

[1, 5, 11, 55, 109, 163, 545, 815, 1199, 1793, 5995, 8965, 17767, 20593, 88835, 102965, 195437, 226523, 977185, 1132615, 2244637, 3356659, 11223185, 16783295, 24691007, 36923249, 123455035, 184616245, 365875831, 1829379155, 4024634141, 20123170705]

約数ペア:

[(1, 20123170705), (5, 4024634141), (11, 1829379155), (55, 365875831), (109, 184616245), (163, 123455035), (545, 36923249), (815, 24691007), (1199, 16783295), (1793, 11223185), (5995, 3356659), (8965, 2244637), (17767, 1132615), (20593, 977185), (88835, 226523), (102965, 195437)]