26156900720

素因数分解:

$2^4\times 5^1\times {\mathrm{326961259}}^1$

素因数の和:326961272

約数の個数: 20

約数和(自身を含む): 60814794360

約数和(自身を除く): 34657893640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 326961259, 653922518, 1307845036, 1634806295, 2615690072, 3269612590, 5231380144, 6539225180, 13078450360, 26156900720]

約数ペア:

[(1, 26156900720), (2, 13078450360), (4, 6539225180), (5, 5231380144), (8, 3269612590), (10, 2615690072), (16, 1634806295), (20, 1307845036), (40, 653922518), (80, 326961259)]