139780487

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 187558272

約数和(自身を除く): 47777785

約数列:

[1, 7, 11, 37, 43, 49, 77, 163, 259, 301, 407, 473, 539, 1141, 1591, 1793, 1813, 2107, 2849, 3311, 6031, 7009, 7987, 11137, 12551, 17501, 19943, 23177, 42217, 49063, 66341, 77099, 77959, 87857, 122507, 259333, 295519, 343441, 464387, 539693, 857549, 1815331, 2852663, 3250709, 3777851, 12707317, 19968641, 139780487]

約数ペア:

[(1, 139780487), (7, 19968641), (11, 12707317), (37, 3777851), (43, 3250709), (49, 2852663), (77, 1815331), (163, 857549), (259, 539693), (301, 464387), (407, 343441), (473, 295519), (539, 259333), (1141, 122507), (1591, 87857), (1793, 77959), (1813, 77099), (2107, 66341), (2849, 49063), (3311, 42217), (6031, 23177), (7009, 19943), (7987, 17501), (11137, 12551)]