28217688

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 81285120

約数和(自身を除く): 53067432

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 23, 24, 31, 34, 46, 51, 62, 68, 69, 92, 93, 97, 102, 124, 136, 138, 184, 186, 194, 204, 248, 276, 291, 372, 388, 391, 408, 527, 552, 582, 713, 744, 776, 782, 1054, 1164, 1173, 1426, 1564, 1581, 1649, 2108, 2139, 2231, 2328, 2346, 2852, 3007, 3128, 3162, 3298, 4216, 4278, 4462, 4692, 4947, 5704, 6014, 6324, 6596, 6693, 8556, 8924, 9021, 9384, 9894, 12028, 12121, 12648, 13192, 13386, 17112, 17848, 18042, 19788, 24056, 24242, 26772, 36084, 36363, 37927, 39576, 48484, 51119, 53544, 69161, 72168, 72726, 75854, 96968, 102238, 113781, 138322, 145452, 151708, 153357, 204476, 207483, 227562, 276644, 290904, 303416, 306714, 408952, 414966, 455124, 553288, 613428, 829932, 910248, 1175737, 1226856, 1659864, 2351474, 3527211, 4702948, 7054422, 9405896, 14108844, 28217688]

約数ペア:

[(1, 28217688), (2, 14108844), (3, 9405896), (4, 7054422), (6, 4702948), (8, 3527211), (12, 2351474), (17, 1659864), (23, 1226856), (24, 1175737), (31, 910248), (34, 829932), (46, 613428), (51, 553288), (62, 455124), (68, 414966), (69, 408952), (92, 306714), (93, 303416), (97, 290904), (102, 276644), (124, 227562), (136, 207483), (138, 204476), (184, 153357), (186, 151708), (194, 145452), (204, 138322), (248, 113781), (276, 102238), (291, 96968), (372, 75854), (388, 72726), (391, 72168), (408, 69161), (527, 53544), (552, 51119), (582, 48484), (713, 39576), (744, 37927), (776, 36363), (782, 36084), (1054, 26772), (1164, 24242), (1173, 24056), (1426, 19788), (1564, 18042), (1581, 17848), (1649, 17112), (2108, 13386), (2139, 13192), (2231, 12648), (2328, 12121), (2346, 12028), (2852, 9894), (3007, 9384), (3128, 9021), (3162, 8924), (3298, 8556), (4216, 6693), (4278, 6596), (4462, 6324), (4692, 6014), (4947, 5704)]