81756878

素因数分解:

$2^1\times 7^1\times {\mathrm{1171}}^1\times {\mathrm{4987}}^1$

素因数の和:6167

約数の個数: 16

約数和(自身を含む): 140302464

約数和(自身を除く): 58545586

約数列:

[1, 2, 7, 14, 1171, 2342, 4987, 8197, 9974, 16394, 34909, 69818, 5839777, 11679554, 40878439, 81756878]

約数ペア:

[(1, 81756878), (2, 40878439), (7, 11679554), (14, 5839777), (1171, 69818), (2342, 34909), (4987, 16394), (8197, 9974)]