20340490

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18661}}^1$

素因数の和:18777

約数の個数: 16

約数和(自身を含む): 36950760

約数和(自身を除く): 16610270

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18661, 37322, 93305, 186610, 2034049, 4068098, 10170245, 20340490]

約数ペア:

[(1, 20340490), (2, 10170245), (5, 4068098), (10, 2034049), (109, 186610), (218, 93305), (545, 37322), (1090, 18661)]