257996872

素因数分解:

$2^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{44729}}^1$

素因数の和:44845

約数の個数: 32

約数和(自身を含む): 558230400

約数和(自身を除く): 300233528

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 103, 206, 412, 721, 824, 1442, 2884, 5768, 44729, 89458, 178916, 313103, 357832, 626206, 1252412, 2504824, 4607087, 9214174, 18428348, 32249609, 36856696, 64499218, 128998436, 257996872]

約数ペア:

[(1, 257996872), (2, 128998436), (4, 64499218), (7, 36856696), (8, 32249609), (14, 18428348), (28, 9214174), (56, 4607087), (103, 2504824), (206, 1252412), (412, 626206), (721, 357832), (824, 313103), (1442, 178916), (2884, 89458), (5768, 44729)]