280418825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{607}}^1\times {\mathrm{1087}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 369119232

約数和(自身を除く): 88700407

約数列:

[1, 5, 17, 25, 85, 425, 607, 1087, 3035, 5435, 10319, 15175, 18479, 27175, 51595, 92395, 257975, 461975, 659809, 3299045, 11216753, 16495225, 56083765, 280418825]

約数ペア:

[(1, 280418825), (5, 56083765), (17, 16495225), (25, 11216753), (85, 3299045), (425, 659809), (607, 461975), (1087, 257975), (3035, 92395), (5435, 51595), (10319, 27175), (15175, 18479)]