81874828

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^2\times {\mathrm{229}}^1$

素因数の和:466

約数の個数: 36

約数和(自身を含む): 165933040

約数和(自身を除く): 84058212

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 229, 452, 458, 791, 916, 1582, 1603, 3164, 3206, 6412, 12769, 25538, 25877, 51076, 51754, 89383, 103508, 178766, 181139, 357532, 362278, 724556, 2924101, 5848202, 11696404, 20468707, 40937414, 81874828]

約数ペア:

[(1, 81874828), (2, 40937414), (4, 20468707), (7, 11696404), (14, 5848202), (28, 2924101), (113, 724556), (226, 362278), (229, 357532), (452, 181139), (458, 178766), (791, 103508), (916, 89383), (1582, 51754), (1603, 51076), (3164, 25877), (3206, 25538), (6412, 12769)]