208640170

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{191413}}^1$

素因数の和:191529

約数の個数: 16

約数和(自身を含む): 378999720

約数和(自身を除く): 170359550

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 191413, 382826, 957065, 1914130, 20864017, 41728034, 104320085, 208640170]

約数ペア:

[(1, 208640170), (2, 104320085), (5, 41728034), (10, 20864017), (109, 1914130), (218, 957065), (545, 382826), (1090, 191413)]