2116720880

素因数分解:

$2^4\times 5^1\times {\mathrm{26459011}}^1$

素因数の和:26459024

約数の個数: 20

約数和(自身を含む): 4921376232

約数和(自身を除く): 2804655352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26459011, 52918022, 105836044, 132295055, 211672088, 264590110, 423344176, 529180220, 1058360440, 2116720880]

約数ペア:

[(1, 2116720880), (2, 1058360440), (4, 529180220), (5, 423344176), (8, 264590110), (10, 211672088), (16, 132295055), (20, 105836044), (40, 52918022), (80, 26459011)]