210009995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{78803}}^1$

素因数の和:78862

約数の個数: 16

約数和(自身を含む): 278020512

約数和(自身を除く): 68010517

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 78803, 394015, 1024439, 3230923, 5122195, 16154615, 42001999, 210009995]

約数ペア:

[(1, 210009995), (5, 42001999), (13, 16154615), (41, 5122195), (65, 3230923), (205, 1024439), (533, 394015), (2665, 78803)]