81259892

素因数分解:

$2^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{10709}}^1$

素因数の和:10991

約数の個数: 24

約数和(自身を含む): 163134720

約数和(自身を除く): 81874828

約数列:

[1, 2, 4, 7, 14, 28, 271, 542, 1084, 1897, 3794, 7588, 10709, 21418, 42836, 74963, 149926, 299852, 2902139, 5804278, 11608556, 20314973, 40629946, 81259892]

約数ペア:

[(1, 81259892), (2, 40629946), (4, 20314973), (7, 11608556), (14, 5804278), (28, 2902139), (271, 299852), (542, 149926), (1084, 74963), (1897, 42836), (3794, 21418), (7588, 10709)]