91081520

素因数分解:

$2^4\times 5^1\times {\mathrm{1138519}}^1$

素因数の和:1138532

約数の個数: 20

約数和(自身を含む): 211764720

約数和(自身を除く): 120683200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1138519, 2277038, 4554076, 5692595, 9108152, 11385190, 18216304, 22770380, 45540760, 91081520]

約数ペア:

[(1, 91081520), (2, 45540760), (4, 22770380), (5, 18216304), (8, 11385190), (10, 9108152), (16, 5692595), (20, 4554076), (40, 2277038), (80, 1138519)]