87381520

素因数分解:

$2^4\times 5^1\times {\mathrm{1092269}}^1$

素因数の和:1092282

約数の個数: 20

約数和(自身を含む): 203162220

約数和(自身を除く): 115780700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1092269, 2184538, 4369076, 5461345, 8738152, 10922690, 17476304, 21845380, 43690760, 87381520]

約数ペア:

[(1, 87381520), (2, 43690760), (4, 21845380), (5, 17476304), (8, 10922690), (10, 8738152), (16, 5461345), (20, 4369076), (40, 2184538), (80, 1092269)]