256208

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:314

約数の個数: 20

約数和(自身を含む): 505920

約数和(自身を除く): 249712

約数列:

[1, 2, 4, 8, 16, 67, 134, 239, 268, 478, 536, 956, 1072, 1912, 3824, 16013, 32026, 64052, 128104, 256208]

約数ペア:

[(1, 256208), (2, 128104), (4, 64052), (8, 32026), (16, 16013), (67, 3824), (134, 1912), (239, 1072), (268, 956), (478, 536)]