1940980

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{907}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 4118688

約数和(自身を除く): 2177708

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 907, 1070, 1814, 2140, 3628, 4535, 9070, 18140, 97049, 194098, 388196, 485245, 970490, 1940980]

約数ペア:

[(1, 1940980), (2, 970490), (4, 485245), (5, 388196), (10, 194098), (20, 97049), (107, 18140), (214, 9070), (428, 4535), (535, 3628), (907, 2140), (1070, 1814)]