256977976

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{4583}}^1$

素因数の和:4795

約数の個数: 32

約数和(自身を含む): 496172160

約数和(自身を除く): 239194184

約数列:

[1, 2, 4, 8, 43, 86, 163, 172, 326, 344, 652, 1304, 4583, 7009, 9166, 14018, 18332, 28036, 36664, 56072, 197069, 394138, 747029, 788276, 1494058, 1576552, 2988116, 5976232, 32122247, 64244494, 128488988, 256977976]

約数ペア:

[(1, 256977976), (2, 128488988), (4, 64244494), (8, 32122247), (43, 5976232), (86, 2988116), (163, 1576552), (172, 1494058), (326, 788276), (344, 747029), (652, 394138), (1304, 197069), (4583, 56072), (7009, 36664), (9166, 28036), (14018, 18332)]