20512730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1619}}^1$

素因数の和:1814

約数の個数: 32

約数和(自身を含む): 42456960

約数和(自身を除く): 21944230

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 181, 362, 905, 1267, 1619, 1810, 2534, 3238, 6335, 8095, 11333, 12670, 16190, 22666, 56665, 113330, 293039, 586078, 1465195, 2051273, 2930390, 4102546, 10256365, 20512730]

約数ペア:

[(1, 20512730), (2, 10256365), (5, 4102546), (7, 2930390), (10, 2051273), (14, 1465195), (35, 586078), (70, 293039), (181, 113330), (362, 56665), (905, 22666), (1267, 16190), (1619, 12670), (1810, 11333), (2534, 8095), (3238, 6335)]