789401855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{20771}}^1$

素因数の和:21478

約数の個数: 16

約数和(自身を含む): 1034944128

約数和(自身を除く): 245542273

約数列:

[1, 5, 11, 55, 691, 3455, 7601, 20771, 38005, 103855, 228481, 1142405, 14352761, 71763805, 157880371, 789401855]

約数ペア:

[(1, 789401855), (5, 157880371), (11, 71763805), (55, 14352761), (691, 1142405), (3455, 228481), (7601, 103855), (20771, 38005)]