281936

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:338

約数の個数: 20

約数和(自身を含む): 556512

約数和(自身を除く): 274576

約数列:

[1, 2, 4, 8, 16, 67, 134, 263, 268, 526, 536, 1052, 1072, 2104, 4208, 17621, 35242, 70484, 140968, 281936]

約数ペア:

[(1, 281936), (2, 140968), (4, 70484), (8, 35242), (16, 17621), (67, 4208), (134, 2104), (263, 1072), (268, 1052), (526, 536)]