81907556

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{2213}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 151260480

約数和(自身を除く): 69352924

約数列:

[1, 2, 4, 19, 38, 76, 487, 974, 1948, 2213, 4426, 8852, 9253, 18506, 37012, 42047, 84094, 168188, 1077731, 2155462, 4310924, 20476889, 40953778, 81907556]

約数ペア:

[(1, 81907556), (2, 40953778), (4, 20476889), (19, 4310924), (38, 2155462), (76, 1077731), (487, 168188), (974, 84094), (1948, 42047), (2213, 37012), (4426, 18506), (8852, 9253)]