28444444

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 60497920

約数和(自身を除く): 32053476

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 127, 133, 254, 266, 421, 508, 532, 842, 889, 1684, 1778, 2413, 2947, 3556, 4826, 5894, 7999, 9652, 11788, 15998, 16891, 31996, 33782, 53467, 55993, 67564, 106934, 111986, 213868, 223972, 374269, 748538, 1015873, 1497076, 2031746, 4063492, 7111111, 14222222, 28444444]

約数ペア:

[(1, 28444444), (2, 14222222), (4, 7111111), (7, 4063492), (14, 2031746), (19, 1497076), (28, 1015873), (38, 748538), (76, 374269), (127, 223972), (133, 213868), (254, 111986), (266, 106934), (421, 67564), (508, 55993), (532, 53467), (842, 33782), (889, 31996), (1684, 16891), (1778, 15998), (2413, 11788), (2947, 9652), (3556, 7999), (4826, 5894)]