18266872

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 37881000

約数和(自身を除く): 19614128

約数列:

[1, 2, 4, 8, 13, 26, 52, 59, 104, 118, 169, 229, 236, 338, 458, 472, 676, 767, 916, 1352, 1534, 1832, 2977, 3068, 5954, 6136, 9971, 11908, 13511, 19942, 23816, 27022, 38701, 39884, 54044, 77402, 79768, 108088, 154804, 175643, 309608, 351286, 702572, 1405144, 2283359, 4566718, 9133436, 18266872]

約数ペア:

[(1, 18266872), (2, 9133436), (4, 4566718), (8, 2283359), (13, 1405144), (26, 702572), (52, 351286), (59, 309608), (104, 175643), (118, 154804), (169, 108088), (229, 79768), (236, 77402), (338, 54044), (458, 39884), (472, 38701), (676, 27022), (767, 23816), (916, 19942), (1352, 13511), (1534, 11908), (1832, 9971), (2977, 6136), (3068, 5954)]