16620980

素因数分解:

$2^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{2707}}^1$

素因数の和:3023

約数の個数: 24

約数和(自身を含む): 35030688

約数和(自身を除く): 18409708

約数列:

[1, 2, 4, 5, 10, 20, 307, 614, 1228, 1535, 2707, 3070, 5414, 6140, 10828, 13535, 27070, 54140, 831049, 1662098, 3324196, 4155245, 8310490, 16620980]

約数ペア:

[(1, 16620980), (2, 8310490), (4, 4155245), (5, 3324196), (10, 1662098), (20, 831049), (307, 54140), (614, 27070), (1228, 13535), (1535, 10828), (2707, 6140), (3070, 5414)]