81999155

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{123307}}^1$

素因数の和:123338

約数の個数: 16

約数和(自身を含む): 118375680

約数和(自身を除く): 36376525

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 123307, 616535, 863149, 2342833, 4315745, 11714165, 16399831, 81999155]

約数ペア:

[(1, 81999155), (5, 16399831), (7, 11714165), (19, 4315745), (35, 2342833), (95, 863149), (133, 616535), (665, 123307)]