19440220

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9437}}^1$

素因数の和:9549

約数の個数: 24

約数和(自身を含む): 41225184

約数和(自身を除く): 21784964

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9437, 18874, 37748, 47185, 94370, 188740, 972011, 1944022, 3888044, 4860055, 9720110, 19440220]

約数ペア:

[(1, 19440220), (2, 9720110), (4, 4860055), (5, 3888044), (10, 1944022), (20, 972011), (103, 188740), (206, 94370), (412, 47185), (515, 37748), (1030, 18874), (2060, 9437)]