8156740

素因数分解:

$2^2\times 5^1\times {\mathrm{617}}^1\times {\mathrm{661}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 17182872

約数和(自身を除く): 9026132

約数列:

[1, 2, 4, 5, 10, 20, 617, 661, 1234, 1322, 2468, 2644, 3085, 3305, 6170, 6610, 12340, 13220, 407837, 815674, 1631348, 2039185, 4078370, 8156740]

約数ペア:

[(1, 8156740), (2, 4078370), (4, 2039185), (5, 1631348), (10, 815674), (20, 407837), (617, 13220), (661, 12340), (1234, 6610), (1322, 6170), (2468, 3305), (2644, 3085)]