257047276

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{198953}}^1$

素因数の和:198993

約数の個数: 24

約数和(自身を含む): 501364080

約数和(自身を除く): 244316804

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 198953, 397906, 795812, 3382201, 3780107, 6764402, 7560214, 13528804, 15120428, 64261819, 128523638, 257047276]

約数ペア:

[(1, 257047276), (2, 128523638), (4, 64261819), (17, 15120428), (19, 13528804), (34, 7560214), (38, 6764402), (68, 3780107), (76, 3382201), (323, 795812), (646, 397906), (1292, 198953)]