19639280

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1933}}^1$

素因数の和:2073

約数の個数: 40

約数和(自身を含む): 46044672

約数和(自身を除く): 26405392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 1933, 2032, 2540, 3866, 5080, 7732, 9665, 10160, 15464, 19330, 30928, 38660, 77320, 154640, 245491, 490982, 981964, 1227455, 1963928, 2454910, 3927856, 4909820, 9819640, 19639280]

約数ペア:

[(1, 19639280), (2, 9819640), (4, 4909820), (5, 3927856), (8, 2454910), (10, 1963928), (16, 1227455), (20, 981964), (40, 490982), (80, 245491), (127, 154640), (254, 77320), (508, 38660), (635, 30928), (1016, 19330), (1270, 15464), (1933, 10160), (2032, 9665), (2540, 7732), (3866, 5080)]