28011228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{347}}^1$

素因数の和:423

約数の個数: 72

約数和(自身を含む): 77406336

約数和(自身を除く): 49395108

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 347, 372, 434, 651, 694, 868, 961, 1041, 1302, 1388, 1922, 2082, 2429, 2604, 2883, 3844, 4164, 4858, 5766, 6727, 7287, 9716, 10757, 11532, 13454, 14574, 20181, 21514, 26908, 29148, 32271, 40362, 43028, 64542, 75299, 80724, 129084, 150598, 225897, 301196, 333467, 451794, 666934, 903588, 1000401, 1333868, 2000802, 2334269, 4001604, 4668538, 7002807, 9337076, 14005614, 28011228]

約数ペア:

[(1, 28011228), (2, 14005614), (3, 9337076), (4, 7002807), (6, 4668538), (7, 4001604), (12, 2334269), (14, 2000802), (21, 1333868), (28, 1000401), (31, 903588), (42, 666934), (62, 451794), (84, 333467), (93, 301196), (124, 225897), (186, 150598), (217, 129084), (347, 80724), (372, 75299), (434, 64542), (651, 43028), (694, 40362), (868, 32271), (961, 29148), (1041, 26908), (1302, 21514), (1388, 20181), (1922, 14574), (2082, 13454), (2429, 11532), (2604, 10757), (2883, 9716), (3844, 7287), (4164, 6727), (4858, 5766)]