164401690

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{184721}}^1$

素因数の和:184817

約数の個数: 16

約数和(自身を含む): 299249640

約数和(自身を除く): 134847950

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 184721, 369442, 923605, 1847210, 16440169, 32880338, 82200845, 164401690]

約数ペア:

[(1, 164401690), (2, 82200845), (5, 32880338), (10, 16440169), (89, 1847210), (178, 923605), (445, 369442), (890, 184721)]