28511784

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 91872000

約数和(自身を除く): 63360216

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 109, 126, 168, 173, 189, 216, 218, 252, 327, 346, 378, 436, 504, 519, 654, 692, 756, 763, 872, 981, 1038, 1211, 1308, 1384, 1512, 1526, 1557, 1962, 2076, 2289, 2422, 2616, 2943, 3052, 3114, 3633, 3924, 4152, 4578, 4671, 4844, 5886, 6104, 6228, 6867, 7266, 7848, 9156, 9342, 9688, 10899, 11772, 12456, 13734, 14532, 18312, 18684, 18857, 20601, 21798, 23544, 27468, 29064, 32697, 37368, 37714, 41202, 43596, 54936, 56571, 65394, 75428, 82404, 87192, 113142, 130788, 131999, 150856, 164808, 169713, 226284, 261576, 263998, 339426, 395997, 452568, 509139, 527996, 678852, 791994, 1018278, 1055992, 1187991, 1357704, 1583988, 2036556, 2375982, 3167976, 3563973, 4073112, 4751964, 7127946, 9503928, 14255892, 28511784]

約数ペア:

[(1, 28511784), (2, 14255892), (3, 9503928), (4, 7127946), (6, 4751964), (7, 4073112), (8, 3563973), (9, 3167976), (12, 2375982), (14, 2036556), (18, 1583988), (21, 1357704), (24, 1187991), (27, 1055992), (28, 1018278), (36, 791994), (42, 678852), (54, 527996), (56, 509139), (63, 452568), (72, 395997), (84, 339426), (108, 263998), (109, 261576), (126, 226284), (168, 169713), (173, 164808), (189, 150856), (216, 131999), (218, 130788), (252, 113142), (327, 87192), (346, 82404), (378, 75428), (436, 65394), (504, 56571), (519, 54936), (654, 43596), (692, 41202), (756, 37714), (763, 37368), (872, 32697), (981, 29064), (1038, 27468), (1211, 23544), (1308, 21798), (1384, 20601), (1512, 18857), (1526, 18684), (1557, 18312), (1962, 14532), (2076, 13734), (2289, 12456), (2422, 11772), (2616, 10899), (2943, 9688), (3052, 9342), (3114, 9156), (3633, 7848), (3924, 7266), (4152, 6867), (4578, 6228), (4671, 6104), (4844, 5886)]