19802260

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{2837}}^1$

素因数の和:3195

約数の個数: 24

約数和(自身を含む): 41718600

約数和(自身を除く): 21916340

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 2837, 3490, 5674, 6980, 11348, 14185, 28370, 56740, 990113, 1980226, 3960452, 4950565, 9901130, 19802260]

約数ペア:

[(1, 19802260), (2, 9901130), (4, 4950565), (5, 3960452), (10, 1980226), (20, 990113), (349, 56740), (698, 28370), (1396, 14185), (1745, 11348), (2837, 6980), (3490, 5674)]