78415888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{257947}}^1$

素因数の和:257974

約数の個数: 20

約数和(自身を含む): 159927760

約数和(自身を除く): 81511872

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 257947, 515894, 1031788, 2063576, 4127152, 4900993, 9801986, 19603972, 39207944, 78415888]

約数ペア:

[(1, 78415888), (2, 39207944), (4, 19603972), (8, 9801986), (16, 4900993), (19, 4127152), (38, 2063576), (76, 1031788), (152, 515894), (304, 257947)]