19438025

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 25069824

約数和(自身を除く): 5631799

約数列:

[1, 5, 25, 47, 71, 233, 235, 355, 1165, 1175, 1775, 3337, 5825, 10951, 16543, 16685, 54755, 82715, 83425, 273775, 413575, 777521, 3887605, 19438025]

約数ペア:

[(1, 19438025), (5, 3887605), (25, 777521), (47, 413575), (71, 273775), (233, 83425), (235, 82715), (355, 54755), (1165, 16685), (1175, 16543), (1775, 10951), (3337, 5825)]