28839025

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:385

約数の個数: 24

約数和(自身を含む): 37046240

約数和(自身を除く): 8207215

約数列:

[1, 5, 25, 43, 139, 193, 215, 695, 965, 1075, 3475, 4825, 5977, 8299, 26827, 29885, 41495, 134135, 149425, 207475, 670675, 1153561, 5767805, 28839025]

約数ペア:

[(1, 28839025), (5, 5767805), (25, 1153561), (43, 670675), (139, 207475), (193, 149425), (215, 134135), (695, 41495), (965, 29885), (1075, 26827), (3475, 8299), (4825, 5977)]