257318958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{41759}}^1$

素因数の和:41856

約数の個数: 32

約数和(自身を含む): 561254400

約数和(自身を除く): 303935442

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 79, 158, 237, 474, 1027, 2054, 3081, 6162, 41759, 83518, 125277, 250554, 542867, 1085734, 1628601, 3257202, 3298961, 6597922, 9896883, 19793766, 42886493, 85772986, 128659479, 257318958]

約数ペア:

[(1, 257318958), (2, 128659479), (3, 85772986), (6, 42886493), (13, 19793766), (26, 9896883), (39, 6597922), (78, 3298961), (79, 3257202), (158, 1628601), (237, 1085734), (474, 542867), (1027, 250554), (2054, 125277), (3081, 83518), (6162, 41759)]