249589845

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{128987}}^1$

素因数の和:129041

約数の個数: 24

約数和(自身を含む): 442686816

約数和(自身を除く): 193096971

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 128987, 386961, 644935, 1160883, 1934805, 5546441, 5804415, 16639323, 27732205, 49917969, 83196615, 249589845]

約数ペア:

[(1, 249589845), (3, 83196615), (5, 49917969), (9, 27732205), (15, 16639323), (43, 5804415), (45, 5546441), (129, 1934805), (215, 1160883), (387, 644935), (645, 386961), (1935, 128987)]