20339740

素因数分解:

$2^2\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1489}}^1$

素因数の和:2181

約数の個数: 24

約数和(自身を含む): 42804720

約数和(自身を除く): 22464980

約数列:

[1, 2, 4, 5, 10, 20, 683, 1366, 1489, 2732, 2978, 3415, 5956, 6830, 7445, 13660, 14890, 29780, 1016987, 2033974, 4067948, 5084935, 10169870, 20339740]

約数ペア:

[(1, 20339740), (2, 10169870), (4, 5084935), (5, 4067948), (10, 2033974), (20, 1016987), (683, 29780), (1366, 14890), (1489, 13660), (2732, 7445), (2978, 6830), (3415, 5956)]