81736718

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{281}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 142940160

約数和(自身を除く): 61203442

約数列:

[1, 2, 7, 14, 79, 158, 263, 281, 526, 553, 562, 1106, 1841, 1967, 3682, 3934, 20777, 22199, 41554, 44398, 73903, 145439, 147806, 155393, 290878, 310786, 517321, 1034642, 5838337, 11676674, 40868359, 81736718]

約数ペア:

[(1, 81736718), (2, 40868359), (7, 11676674), (14, 5838337), (79, 1034642), (158, 517321), (263, 310786), (281, 290878), (526, 155393), (553, 147806), (562, 145439), (1106, 73903), (1841, 44398), (1967, 41554), (3682, 22199), (3934, 20777)]