28402948

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:329

約数の個数: 72

約数和(自身を含む): 63201600

約数和(自身を除く): 34798652

約数列:

[1, 2, 4, 7, 14, 19, 28, 29, 38, 49, 58, 76, 98, 116, 133, 196, 203, 263, 266, 406, 526, 532, 551, 812, 931, 1052, 1102, 1421, 1841, 1862, 2204, 2842, 3682, 3724, 3857, 4997, 5684, 7364, 7627, 7714, 9994, 12887, 15254, 15428, 19988, 25774, 26999, 30508, 34979, 51548, 53389, 53998, 69958, 106778, 107996, 139916, 144913, 213556, 244853, 289826, 373723, 489706, 579652, 747446, 979412, 1014391, 1494892, 2028782, 4057564, 7100737, 14201474, 28402948]

約数ペア:

[(1, 28402948), (2, 14201474), (4, 7100737), (7, 4057564), (14, 2028782), (19, 1494892), (28, 1014391), (29, 979412), (38, 747446), (49, 579652), (58, 489706), (76, 373723), (98, 289826), (116, 244853), (133, 213556), (196, 144913), (203, 139916), (263, 107996), (266, 106778), (406, 69958), (526, 53998), (532, 53389), (551, 51548), (812, 34979), (931, 30508), (1052, 26999), (1102, 25774), (1421, 19988), (1841, 15428), (1862, 15254), (2204, 12887), (2842, 9994), (3682, 7714), (3724, 7627), (3857, 7364), (4997, 5684)]