257201048

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79777}}^1$

素因数の和:79827

約数の個数: 32

約数和(自身を含む): 536108160

約数和(自身を除く): 278907112

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 79777, 159554, 319108, 638216, 1037101, 2074202, 2473087, 4148404, 4946174, 8296808, 9892348, 19784696, 32150131, 64300262, 128600524, 257201048]

約数ペア:

[(1, 257201048), (2, 128600524), (4, 64300262), (8, 32150131), (13, 19784696), (26, 9892348), (31, 8296808), (52, 4946174), (62, 4148404), (104, 2473087), (124, 2074202), (248, 1037101), (403, 638216), (806, 319108), (1612, 159554), (3224, 79777)]