664219528

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{122279}}^1$

素因数の和:122389

約数の個数: 32

約数和(自身を含む): 1438012800

約数和(自身を除く): 773793272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 5432, 122279, 244558, 489116, 855953, 978232, 1711906, 3423812, 6847624, 11861063, 23722126, 47444252, 83027441, 94888504, 166054882, 332109764, 664219528]

約数ペア:

[(1, 664219528), (2, 332109764), (4, 166054882), (7, 94888504), (8, 83027441), (14, 47444252), (28, 23722126), (56, 11861063), (97, 6847624), (194, 3423812), (388, 1711906), (679, 978232), (776, 855953), (1358, 489116), (2716, 244558), (5432, 122279)]