28387548

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{887}}^1$

素因数の和:1031

約数の個数: 72

約数和(自身を含む): 82747392

約数和(自身を除く): 54359844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 762, 887, 889, 1143, 1524, 1774, 1778, 2286, 2661, 2667, 3548, 3556, 4572, 5322, 5334, 6209, 7983, 8001, 10644, 10668, 12418, 15966, 16002, 18627, 24836, 31932, 32004, 37254, 55881, 74508, 111762, 112649, 223524, 225298, 337947, 450596, 675894, 788543, 1013841, 1351788, 1577086, 2027682, 2365629, 3154172, 4055364, 4731258, 7096887, 9462516, 14193774, 28387548]

約数ペア:

[(1, 28387548), (2, 14193774), (3, 9462516), (4, 7096887), (6, 4731258), (7, 4055364), (9, 3154172), (12, 2365629), (14, 2027682), (18, 1577086), (21, 1351788), (28, 1013841), (36, 788543), (42, 675894), (63, 450596), (84, 337947), (126, 225298), (127, 223524), (252, 112649), (254, 111762), (381, 74508), (508, 55881), (762, 37254), (887, 32004), (889, 31932), (1143, 24836), (1524, 18627), (1774, 16002), (1778, 15966), (2286, 12418), (2661, 10668), (2667, 10644), (3548, 8001), (3556, 7983), (4572, 6209), (5322, 5334)]