78872572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{2131}}^1$

素因数の和:2641

約数の個数: 24

約数和(自身を含む): 145658240

約数和(自身を除く): 66785668

約数列:

[1, 2, 4, 19, 38, 76, 487, 974, 1948, 2131, 4262, 8524, 9253, 18506, 37012, 40489, 80978, 161956, 1037797, 2075594, 4151188, 19718143, 39436286, 78872572]

約数ペア:

[(1, 78872572), (2, 39436286), (4, 19718143), (19, 4151188), (38, 2075594), (76, 1037797), (487, 161956), (974, 80978), (1948, 40489), (2131, 37012), (4262, 18506), (8524, 9253)]