31172080

素因数分解:

$2^4\times 5^1\times {\mathrm{389651}}^1$

素因数の和:389664

約数の個数: 20

約数和(自身を含む): 72475272

約数和(自身を除く): 41303192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389651, 779302, 1558604, 1948255, 3117208, 3896510, 6234416, 7793020, 15586040, 31172080]

約数ペア:

[(1, 31172080), (2, 15586040), (4, 7793020), (5, 6234416), (8, 3896510), (10, 3117208), (16, 1948255), (20, 1558604), (40, 779302), (80, 389651)]