28205856

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:863

約数の個数: 144

約数和(自身を含む): 97179264

約数和(自身を除く): 68973408

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 28, 32, 34, 36, 42, 48, 51, 56, 63, 68, 72, 84, 96, 102, 112, 119, 126, 136, 144, 153, 168, 204, 224, 238, 252, 272, 288, 306, 336, 357, 408, 476, 504, 544, 612, 672, 714, 816, 823, 952, 1008, 1071, 1224, 1428, 1632, 1646, 1904, 2016, 2142, 2448, 2469, 2856, 3292, 3808, 4284, 4896, 4938, 5712, 5761, 6584, 7407, 8568, 9876, 11424, 11522, 13168, 13991, 14814, 17136, 17283, 19752, 23044, 26336, 27982, 29628, 34272, 34566, 39504, 41973, 46088, 51849, 55964, 59256, 69132, 79008, 83946, 92176, 97937, 103698, 111928, 118512, 125919, 138264, 167892, 184352, 195874, 207396, 223856, 237024, 251838, 276528, 293811, 335784, 391748, 414792, 447712, 503676, 553056, 587622, 671568, 783496, 829584, 881433, 1007352, 1175244, 1343136, 1566992, 1659168, 1762866, 2014704, 2350488, 3133984, 3525732, 4029408, 4700976, 7051464, 9401952, 14102928, 28205856]

約数ペア:

[(1, 28205856), (2, 14102928), (3, 9401952), (4, 7051464), (6, 4700976), (7, 4029408), (8, 3525732), (9, 3133984), (12, 2350488), (14, 2014704), (16, 1762866), (17, 1659168), (18, 1566992), (21, 1343136), (24, 1175244), (28, 1007352), (32, 881433), (34, 829584), (36, 783496), (42, 671568), (48, 587622), (51, 553056), (56, 503676), (63, 447712), (68, 414792), (72, 391748), (84, 335784), (96, 293811), (102, 276528), (112, 251838), (119, 237024), (126, 223856), (136, 207396), (144, 195874), (153, 184352), (168, 167892), (204, 138264), (224, 125919), (238, 118512), (252, 111928), (272, 103698), (288, 97937), (306, 92176), (336, 83946), (357, 79008), (408, 69132), (476, 59256), (504, 55964), (544, 51849), (612, 46088), (672, 41973), (714, 39504), (816, 34566), (823, 34272), (952, 29628), (1008, 27982), (1071, 26336), (1224, 23044), (1428, 19752), (1632, 17283), (1646, 17136), (1904, 14814), (2016, 13991), (2142, 13168), (2448, 11522), (2469, 11424), (2856, 9876), (3292, 8568), (3808, 7407), (4284, 6584), (4896, 5761), (4938, 5712)]