28220472

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 93810600

約数和(自身を除く): 65590128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 28, 36, 38, 42, 49, 56, 57, 63, 72, 76, 84, 98, 114, 126, 133, 147, 152, 168, 171, 196, 228, 252, 266, 294, 342, 392, 399, 421, 441, 456, 504, 532, 588, 684, 798, 842, 882, 931, 1064, 1176, 1197, 1263, 1368, 1596, 1684, 1764, 1862, 2394, 2526, 2793, 2947, 3192, 3368, 3528, 3724, 3789, 4788, 5052, 5586, 5894, 7448, 7578, 7999, 8379, 8841, 9576, 10104, 11172, 11788, 15156, 15998, 16758, 17682, 20629, 22344, 23576, 23997, 26523, 30312, 31996, 33516, 35364, 41258, 47994, 53046, 55993, 61887, 63992, 67032, 70728, 71991, 82516, 95988, 106092, 111986, 123774, 143982, 165032, 167979, 185661, 191976, 212184, 223972, 247548, 287964, 335958, 371322, 391951, 447944, 495096, 503937, 575928, 671916, 742644, 783902, 1007874, 1175853, 1343832, 1485288, 1567804, 2015748, 2351706, 3135608, 3527559, 4031496, 4703412, 7055118, 9406824, 14110236, 28220472]

約数ペア:

[(1, 28220472), (2, 14110236), (3, 9406824), (4, 7055118), (6, 4703412), (7, 4031496), (8, 3527559), (9, 3135608), (12, 2351706), (14, 2015748), (18, 1567804), (19, 1485288), (21, 1343832), (24, 1175853), (28, 1007874), (36, 783902), (38, 742644), (42, 671916), (49, 575928), (56, 503937), (57, 495096), (63, 447944), (72, 391951), (76, 371322), (84, 335958), (98, 287964), (114, 247548), (126, 223972), (133, 212184), (147, 191976), (152, 185661), (168, 167979), (171, 165032), (196, 143982), (228, 123774), (252, 111986), (266, 106092), (294, 95988), (342, 82516), (392, 71991), (399, 70728), (421, 67032), (441, 63992), (456, 61887), (504, 55993), (532, 53046), (588, 47994), (684, 41258), (798, 35364), (842, 33516), (882, 31996), (931, 30312), (1064, 26523), (1176, 23997), (1197, 23576), (1263, 22344), (1368, 20629), (1596, 17682), (1684, 16758), (1764, 15998), (1862, 15156), (2394, 11788), (2526, 11172), (2793, 10104), (2947, 9576), (3192, 8841), (3368, 8379), (3528, 7999), (3724, 7578), (3789, 7448), (4788, 5894), (5052, 5586)]