28505456

素因数分解:

$2^4\times 7^2\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:478

約数の個数: 60

約数和(自身を含む): 65053872

約数和(自身を除く): 36548416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 103, 112, 196, 206, 353, 392, 412, 706, 721, 784, 824, 1412, 1442, 1648, 2471, 2824, 2884, 4942, 5047, 5648, 5768, 9884, 10094, 11536, 17297, 19768, 20188, 34594, 36359, 39536, 40376, 69188, 72718, 80752, 138376, 145436, 254513, 276752, 290872, 509026, 581744, 1018052, 1781591, 2036104, 3563182, 4072208, 7126364, 14252728, 28505456]

約数ペア:

[(1, 28505456), (2, 14252728), (4, 7126364), (7, 4072208), (8, 3563182), (14, 2036104), (16, 1781591), (28, 1018052), (49, 581744), (56, 509026), (98, 290872), (103, 276752), (112, 254513), (196, 145436), (206, 138376), (353, 80752), (392, 72718), (412, 69188), (706, 40376), (721, 39536), (784, 36359), (824, 34594), (1412, 20188), (1442, 19768), (1648, 17297), (2471, 11536), (2824, 10094), (2884, 9884), (4942, 5768), (5047, 5648)]