28045005

素因数分解:

$3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{7109}}^1$

素因数の和:7380

約数の個数: 16

約数和(自身を含む): 45048960

約数和(自身を除く): 17003955

約数列:

[1, 3, 5, 15, 263, 789, 1315, 3945, 7109, 21327, 35545, 106635, 1869667, 5609001, 9348335, 28045005]

約数ペア:

[(1, 28045005), (3, 9348335), (5, 5609001), (15, 1869667), (263, 106635), (789, 35545), (1315, 21327), (3945, 7109)]