28420755

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7489}}^1$

素因数の和:7531

約数の個数: 32

約数和(自身を含む): 51770880

約数和(自身を除く): 23350125

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 7489, 22467, 37445, 82379, 112335, 172247, 247137, 411895, 516741, 861235, 1235685, 1894717, 2583705, 5684151, 9473585, 28420755]

約数ペア:

[(1, 28420755), (3, 9473585), (5, 5684151), (11, 2583705), (15, 1894717), (23, 1235685), (33, 861235), (55, 516741), (69, 411895), (115, 247137), (165, 172247), (253, 112335), (345, 82379), (759, 37445), (1265, 22467), (3795, 7489)]