19782185

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 25738560

約数和(自身を除く): 5956375

約数列:

[1, 5, 23, 31, 115, 155, 179, 713, 895, 961, 3565, 4117, 4805, 5549, 20585, 22103, 27745, 110515, 127627, 172019, 638135, 860095, 3956437, 19782185]

約数ペア:

[(1, 19782185), (5, 3956437), (23, 860095), (31, 638135), (115, 172019), (155, 127627), (179, 110515), (713, 27745), (895, 22103), (961, 20585), (3565, 5549), (4117, 4805)]