28026795

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{839}}^1$

素因数の和:995

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 19873365

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 655, 839, 1965, 2227, 2517, 4195, 6681, 11135, 12585, 14263, 33405, 42789, 71315, 109909, 213945, 329727, 549545, 1648635, 1868453, 5605359, 9342265, 28026795]

約数ペア:

[(1, 28026795), (3, 9342265), (5, 5605359), (15, 1868453), (17, 1648635), (51, 549545), (85, 329727), (131, 213945), (255, 109909), (393, 71315), (655, 42789), (839, 33405), (1965, 14263), (2227, 12585), (2517, 11135), (4195, 6681)]