20949160

素因数分解:

$2^3\times 5^1\times {\mathrm{523729}}^1$

素因数の和:523740

約数の個数: 16

約数和(自身を含む): 47135700

約数和(自身を除く): 26186540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523729, 1047458, 2094916, 2618645, 4189832, 5237290, 10474580, 20949160]

約数ペア:

[(1, 20949160), (2, 10474580), (4, 5237290), (5, 4189832), (8, 2618645), (10, 2094916), (20, 1047458), (40, 523729)]