87261520

素因数分解:

$2^4\times 5^1\times {\mathrm{1090769}}^1$

素因数の和:1090782

約数の個数: 20

約数和(自身を含む): 202883220

約数和(自身を除く): 115621700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1090769, 2181538, 4363076, 5453845, 8726152, 10907690, 17452304, 21815380, 43630760, 87261520]

約数ペア:

[(1, 87261520), (2, 43630760), (4, 21815380), (5, 17452304), (8, 10907690), (10, 8726152), (16, 5453845), (20, 4363076), (40, 2181538), (80, 1090769)]