12990775

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3907}}^1$

素因数の和:3943

約数の個数: 24

約数和(自身を含む): 19383680

約数和(自身を除く): 6392905

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 3325, 3907, 19535, 27349, 74233, 97675, 136745, 371165, 519631, 683725, 1855825, 2598155, 12990775]

約数ペア:

[(1, 12990775), (5, 2598155), (7, 1855825), (19, 683725), (25, 519631), (35, 371165), (95, 136745), (133, 97675), (175, 74233), (475, 27349), (665, 19535), (3325, 3907)]