20176983545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{21617}}^1$

素因数の和:21857

約数の個数: 32

約数和(自身を含む): 26149132800

約数和(自身を除く): 5972149255

約数列:

[1, 5, 17, 79, 85, 139, 395, 695, 1343, 2363, 6715, 10981, 11815, 21617, 54905, 108085, 186677, 367489, 933385, 1707743, 1837445, 3004763, 8538715, 15023815, 29031631, 51080971, 145158155, 237376277, 255404855, 1186881385, 4035396709, 20176983545]

約数ペア:

[(1, 20176983545), (5, 4035396709), (17, 1186881385), (79, 255404855), (85, 237376277), (139, 145158155), (395, 51080971), (695, 29031631), (1343, 15023815), (2363, 8538715), (6715, 3004763), (10981, 1837445), (11815, 1707743), (21617, 933385), (54905, 367489), (108085, 186677)]