28757188

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{223}}^1\times {\mathrm{313}}^1$

素因数の和:643

約数の個数: 24

約数和(自身を含む): 51204608

約数和(自身を除く): 22447420

約数列:

[1, 2, 4, 103, 206, 223, 313, 412, 446, 626, 892, 1252, 22969, 32239, 45938, 64478, 69799, 91876, 128956, 139598, 279196, 7189297, 14378594, 28757188]

約数ペア:

[(1, 28757188), (2, 14378594), (4, 7189297), (103, 279196), (206, 139598), (223, 128956), (313, 91876), (412, 69799), (446, 64478), (626, 45938), (892, 32239), (1252, 22969)]