256783948

素因数分解:

$2^2\times {\mathrm{313}}^1\times {\mathrm{317}}^1\times {\mathrm{647}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 452928672

約数和(自身を除く): 196144724

約数列:

[1, 2, 4, 313, 317, 626, 634, 647, 1252, 1268, 1294, 2588, 99221, 198442, 202511, 205099, 396884, 405022, 410198, 810044, 820396, 64195987, 128391974, 256783948]

約数ペア:

[(1, 256783948), (2, 128391974), (4, 64195987), (313, 820396), (317, 810044), (626, 410198), (634, 405022), (647, 396884), (1252, 205099), (1268, 202511), (1294, 198442), (2588, 99221)]