28240745

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1759}}^1$

素因数の和:1809

約数の個数: 24

約数和(自身を含む): 38649600

約数和(自身を除く): 10408855

約数列:

[1, 5, 13, 19, 65, 95, 169, 247, 845, 1235, 1759, 3211, 8795, 16055, 22867, 33421, 114335, 167105, 297271, 434473, 1486355, 2172365, 5648149, 28240745]

約数ペア:

[(1, 28240745), (5, 5648149), (13, 2172365), (19, 1486355), (65, 434473), (95, 297271), (169, 167105), (247, 114335), (845, 33421), (1235, 22867), (1759, 16055), (3211, 8795)]