18154144

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 37245096

約数和(自身を除く): 19090952

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 101, 137, 164, 202, 274, 328, 404, 548, 656, 808, 1096, 1312, 1616, 2192, 3232, 4141, 4384, 5617, 8282, 11234, 13837, 16564, 22468, 27674, 33128, 44936, 55348, 66256, 89872, 110696, 132512, 179744, 221392, 442784, 567317, 1134634, 2269268, 4538536, 9077072, 18154144]

約数ペア:

[(1, 18154144), (2, 9077072), (4, 4538536), (8, 2269268), (16, 1134634), (32, 567317), (41, 442784), (82, 221392), (101, 179744), (137, 132512), (164, 110696), (202, 89872), (274, 66256), (328, 55348), (404, 44936), (548, 33128), (656, 27674), (808, 22468), (1096, 16564), (1312, 13837), (1616, 11234), (2192, 8282), (3232, 5617), (4141, 4384)]