18651280

素因数分解:

$2^4\times 5^1\times {\mathrm{233141}}^1$

素因数の和:233154

約数の個数: 20

約数和(自身を含む): 43364412

約数和(自身を除く): 24713132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233141, 466282, 932564, 1165705, 1865128, 2331410, 3730256, 4662820, 9325640, 18651280]

約数ペア:

[(1, 18651280), (2, 9325640), (4, 4662820), (5, 3730256), (8, 2331410), (10, 1865128), (16, 1165705), (20, 932564), (40, 466282), (80, 233141)]