256875268

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{379993}}^1$

素因数の和:380023

約数の個数: 18

約数和(自身を含む): 486772314

約数和(自身を除く): 229897046

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 379993, 759986, 1519972, 4939909, 9879818, 19759636, 64218817, 128437634, 256875268]

約数ペア:

[(1, 256875268), (2, 128437634), (4, 64218817), (13, 19759636), (26, 9879818), (52, 4939909), (169, 1519972), (338, 759986), (676, 379993)]