281340560

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{27691}}^1$

素因数の和:27831

約数の個数: 40

約数和(自身を含む): 659291136

約数和(自身を除く): 377950576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 27691, 55382, 110764, 138455, 221528, 276910, 443056, 553820, 1107640, 2215280, 3516757, 7033514, 14067028, 17583785, 28134056, 35167570, 56268112, 70335140, 140670280, 281340560]

約数ペア:

[(1, 281340560), (2, 140670280), (4, 70335140), (5, 56268112), (8, 35167570), (10, 28134056), (16, 17583785), (20, 14067028), (40, 7033514), (80, 3516757), (127, 2215280), (254, 1107640), (508, 553820), (635, 443056), (1016, 276910), (1270, 221528), (2032, 138455), (2540, 110764), (5080, 55382), (10160, 27691)]