28384275

素因数分解:

$3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1439}}^1$

素因数の和:1715

約数の個数: 24

約数和(自身を含む): 47139840

約数和(自身を除く): 18755565

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1315, 1439, 3945, 4317, 6575, 7195, 19725, 21585, 35975, 107925, 378457, 1135371, 1892285, 5676855, 9461425, 28384275]

約数ペア:

[(1, 28384275), (3, 9461425), (5, 5676855), (15, 1892285), (25, 1135371), (75, 378457), (263, 107925), (789, 35975), (1315, 21585), (1439, 19725), (3945, 7195), (4317, 6575)]