18194270

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20443}}^1$

素因数の和:20539

約数の個数: 16

約数和(自身を含む): 33119280

約数和(自身を除く): 14925010

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 20443, 40886, 102215, 204430, 1819427, 3638854, 9097135, 18194270]

約数ペア:

[(1, 18194270), (2, 9097135), (5, 3638854), (10, 1819427), (89, 204430), (178, 102215), (445, 40886), (890, 20443)]