639267968

素因数分解:

$2^7\times {\mathrm{257}}^1\times {\mathrm{19433}}^1$

素因数の和:19704

約数の個数: 32

約数和(自身を含む): 1278562860

約数和(自身を除く): 639294892

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 257, 514, 1028, 2056, 4112, 8224, 16448, 19433, 32896, 38866, 77732, 155464, 310928, 621856, 1243712, 2487424, 4994281, 9988562, 19977124, 39954248, 79908496, 159816992, 319633984, 639267968]

約数ペア:

[(1, 639267968), (2, 319633984), (4, 159816992), (8, 79908496), (16, 39954248), (32, 19977124), (64, 9988562), (128, 4994281), (257, 2487424), (514, 1243712), (1028, 621856), (2056, 310928), (4112, 155464), (8224, 77732), (16448, 38866), (19433, 32896)]