18700690

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26339}}^1$

素因数の和:26417

約数の個数: 16

約数和(自身を含む): 34136640

約数和(自身を除く): 15435950

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 26339, 52678, 131695, 263390, 1870069, 3740138, 9350345, 18700690]

約数ペア:

[(1, 18700690), (2, 9350345), (5, 3740138), (10, 1870069), (71, 263390), (142, 131695), (355, 52678), (710, 26339)]