12879560

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2161}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 29187000

約数和(自身を除く): 16307440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2161, 2980, 4322, 5960, 8644, 10805, 17288, 21610, 43220, 86440, 321989, 643978, 1287956, 1609945, 2575912, 3219890, 6439780, 12879560]

約数ペア:

[(1, 12879560), (2, 6439780), (4, 3219890), (5, 2575912), (8, 1609945), (10, 1287956), (20, 643978), (40, 321989), (149, 86440), (298, 43220), (596, 21610), (745, 17288), (1192, 10805), (1490, 8644), (2161, 5960), (2980, 4322)]