19390780

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9413}}^1$

素因数の和:9525

約数の個数: 24

約数和(自身を含む): 41120352

約数和(自身を除く): 21729572

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9413, 18826, 37652, 47065, 94130, 188260, 969539, 1939078, 3878156, 4847695, 9695390, 19390780]

約数ペア:

[(1, 19390780), (2, 9695390), (4, 4847695), (5, 3878156), (10, 1939078), (20, 969539), (103, 188260), (206, 94130), (412, 47065), (515, 37652), (1030, 18826), (2060, 9413)]