81100304

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{7883}}^1$

素因数の和:8534

約数の個数: 20

約数和(自身を含む): 157396176

約数和(自身を除く): 76295872

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2572, 5144, 7883, 10288, 15766, 31532, 63064, 126128, 5068769, 10137538, 20275076, 40550152, 81100304]

約数ペア:

[(1, 81100304), (2, 40550152), (4, 20275076), (8, 10137538), (16, 5068769), (643, 126128), (1286, 63064), (2572, 31532), (5144, 15766), (7883, 10288)]