2155075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 3038000

約数和(自身を除く): 882925

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 349, 475, 1235, 1745, 4537, 6175, 6631, 8725, 22685, 33155, 86203, 113425, 165775, 431015, 2155075]

約数ペア:

[(1, 2155075), (5, 431015), (13, 165775), (19, 113425), (25, 86203), (65, 33155), (95, 22685), (247, 8725), (325, 6631), (349, 6175), (475, 4537), (1235, 1745)]