8640678

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{313}}^1$

素因数の和:468

約数の個数: 32

約数和(自身を含む): 17905536

約数和(自身を除く): 9264858

約数列:

[1, 2, 3, 6, 43, 86, 107, 129, 214, 258, 313, 321, 626, 642, 939, 1878, 4601, 9202, 13459, 13803, 26918, 27606, 33491, 40377, 66982, 80754, 100473, 200946, 1440113, 2880226, 4320339, 8640678]

約数ペア:

[(1, 8640678), (2, 4320339), (3, 2880226), (6, 1440113), (43, 200946), (86, 100473), (107, 80754), (129, 66982), (214, 40377), (258, 33491), (313, 27606), (321, 26918), (626, 13803), (642, 13459), (939, 9202), (1878, 4601)]