2017789780

素因数分解:

$2^2\times 5^1\times {\mathrm{9421}}^1\times {\mathrm{10709}}^1$

素因数の和:20139

約数の個数: 24

約数和(自身を含む): 4238204040

約数和(自身を除く): 2220414260

約数列:

[1, 2, 4, 5, 10, 20, 9421, 10709, 18842, 21418, 37684, 42836, 47105, 53545, 94210, 107090, 188420, 214180, 100889489, 201778978, 403557956, 504447445, 1008894890, 2017789780]

約数ペア:

[(1, 2017789780), (2, 1008894890), (4, 504447445), (5, 403557956), (10, 201778978), (20, 100889489), (9421, 214180), (10709, 188420), (18842, 107090), (21418, 94210), (37684, 53545), (42836, 47105)]