12765520

素因数分解:

$2^4\times 5^1\times {\mathrm{159569}}^1$

素因数の和:159582

約数の個数: 20

約数和(自身を含む): 29680020

約数和(自身を除く): 16914500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159569, 319138, 638276, 797845, 1276552, 1595690, 2553104, 3191380, 6382760, 12765520]

約数ペア:

[(1, 12765520), (2, 6382760), (4, 3191380), (5, 2553104), (8, 1595690), (10, 1276552), (16, 797845), (20, 638276), (40, 319138), (80, 159569)]