80821688

素因数分解:

$2^3\times {\mathrm{521}}^1\times {\mathrm{19391}}^1$

素因数の和:19918

約数の個数: 16

約数和(自身を含む): 151839360

約数和(自身を除く): 71017672

約数列:

[1, 2, 4, 8, 521, 1042, 2084, 4168, 19391, 38782, 77564, 155128, 10102711, 20205422, 40410844, 80821688]

約数ペア:

[(1, 80821688), (2, 40410844), (4, 20205422), (8, 10102711), (521, 155128), (1042, 77564), (2084, 38782), (4168, 19391)]