20519208860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9960781}}^1$

素因数の和:9960893

約数の個数: 24

約数和(自身を含む): 43508695776

約数和(自身を除く): 22989486916

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9960781, 19921562, 39843124, 49803905, 99607810, 199215620, 1025960443, 2051920886, 4103841772, 5129802215, 10259604430, 20519208860]

約数ペア:

[(1, 20519208860), (2, 10259604430), (4, 5129802215), (5, 4103841772), (10, 2051920886), (20, 1025960443), (103, 199215620), (206, 99607810), (412, 49803905), (515, 39843124), (1030, 19921562), (2060, 9960781)]