28120675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{349}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 38278800

約数和(自身を除く): 10158125

約数列:

[1, 5, 11, 25, 55, 275, 293, 349, 1465, 1745, 3223, 3839, 7325, 8725, 16115, 19195, 80575, 95975, 102257, 511285, 1124827, 2556425, 5624135, 28120675]

約数ペア:

[(1, 28120675), (5, 5624135), (11, 2556425), (25, 1124827), (55, 511285), (275, 102257), (293, 95975), (349, 80575), (1465, 19195), (1745, 16115), (3223, 8725), (3839, 7325)]