2055565520

素因数分解:

$2^4\times 5^1\times {\mathrm{25694569}}^1$

素因数の和:25694582

約数の個数: 20

約数和(自身を含む): 4779190020

約数和(自身を除く): 2723624500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25694569, 51389138, 102778276, 128472845, 205556552, 256945690, 411113104, 513891380, 1027782760, 2055565520]

約数ペア:

[(1, 2055565520), (2, 1027782760), (4, 513891380), (5, 411113104), (8, 256945690), (10, 205556552), (16, 128472845), (20, 102778276), (40, 51389138), (80, 25694569)]