28720384976

素因数分解:

$2^4\times {\mathrm{1279}}^1\times {\mathrm{1403459}}^1$

素因数の和:1404746

約数の個数: 20

約数和(自身を含む): 55689292800

約数和(自身を除く): 26968907824

約数列:

[1, 2, 4, 8, 16, 1279, 2558, 5116, 10232, 20464, 1403459, 2806918, 5613836, 11227672, 22455344, 1795024061, 3590048122, 7180096244, 14360192488, 28720384976]

約数ペア:

[(1, 28720384976), (2, 14360192488), (4, 7180096244), (8, 3590048122), (16, 1795024061), (1279, 22455344), (2558, 11227672), (5116, 5613836), (10232, 2806918), (20464, 1403459)]