2780495620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19860683}}^1$

素因数の和:19860699

約数の個数: 24

約数和(自身を含む): 6673189824

約数和(自身を除く): 3892694204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 19860683, 39721366, 79442732, 99303415, 139024781, 198606830, 278049562, 397213660, 556099124, 695123905, 1390247810, 2780495620]

約数ペア:

[(1, 2780495620), (2, 1390247810), (4, 695123905), (5, 556099124), (7, 397213660), (10, 278049562), (14, 198606830), (20, 139024781), (28, 99303415), (35, 79442732), (70, 39721366), (140, 19860683)]