18128236

素因数分解:

$2^2\times 7^3\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:279

約数の個数: 48

約数和(自身を含む): 37710400

約数和(自身を除く): 19582164

約数列:

[1, 2, 4, 7, 14, 28, 49, 73, 98, 146, 181, 196, 292, 343, 362, 511, 686, 724, 1022, 1267, 1372, 2044, 2534, 3577, 5068, 7154, 8869, 13213, 14308, 17738, 25039, 26426, 35476, 50078, 52852, 62083, 92491, 100156, 124166, 184982, 248332, 369964, 647437, 1294874, 2589748, 4532059, 9064118, 18128236]

約数ペア:

[(1, 18128236), (2, 9064118), (4, 4532059), (7, 2589748), (14, 1294874), (28, 647437), (49, 369964), (73, 248332), (98, 184982), (146, 124166), (181, 100156), (196, 92491), (292, 62083), (343, 52852), (362, 50078), (511, 35476), (686, 26426), (724, 25039), (1022, 17738), (1267, 14308), (1372, 13213), (2044, 8869), (2534, 7154), (3577, 5068)]