990291212

素因数分解:

$2^2\times {\mathrm{2003}}^1\times {\mathrm{123601}}^1$

素因数の和:125608

約数の個数: 12

約数和(自身を含む): 1733888856

約数和(自身を除く): 743597644

約数列:

[1, 2, 4, 2003, 4006, 8012, 123601, 247202, 494404, 247572803, 495145606, 990291212]

約数ペア:

[(1, 990291212), (2, 495145606), (4, 247572803), (2003, 494404), (4006, 247202), (8012, 123601)]