20085128

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 46464000

約数和(自身を除く): 26378872

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 43, 56, 76, 86, 133, 152, 172, 266, 301, 344, 439, 532, 602, 817, 878, 1064, 1204, 1634, 1756, 2408, 3073, 3268, 3512, 5719, 6146, 6536, 8341, 11438, 12292, 16682, 18877, 22876, 24584, 33364, 37754, 45752, 58387, 66728, 75508, 116774, 132139, 151016, 233548, 264278, 358663, 467096, 528556, 717326, 1057112, 1434652, 2510641, 2869304, 5021282, 10042564, 20085128]

約数ペア:

[(1, 20085128), (2, 10042564), (4, 5021282), (7, 2869304), (8, 2510641), (14, 1434652), (19, 1057112), (28, 717326), (38, 528556), (43, 467096), (56, 358663), (76, 264278), (86, 233548), (133, 151016), (152, 132139), (172, 116774), (266, 75508), (301, 66728), (344, 58387), (439, 45752), (532, 37754), (602, 33364), (817, 24584), (878, 22876), (1064, 18877), (1204, 16682), (1634, 12292), (1756, 11438), (2408, 8341), (3073, 6536), (3268, 6146), (3512, 5719)]