81345908

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61813}}^1$

素因数の和:61871

約数の個数: 24

約数和(自身を含む): 166156032

約数和(自身を除く): 84810124

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 61813, 123626, 247252, 432691, 865382, 1730764, 2905211, 5810422, 11620844, 20336477, 40672954, 81345908]

約数ペア:

[(1, 81345908), (2, 40672954), (4, 20336477), (7, 11620844), (14, 5810422), (28, 2905211), (47, 1730764), (94, 865382), (188, 432691), (329, 247252), (658, 123626), (1316, 61813)]