81250015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211039}}^1$

素因数の和:211062

約数の個数: 16

約数和(自身を含む): 121559040

約数和(自身を除く): 40309025

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 211039, 1055195, 1477273, 2321429, 7386365, 11607145, 16250003, 81250015]

約数ペア:

[(1, 81250015), (5, 16250003), (7, 11607145), (11, 7386365), (35, 2321429), (55, 1477273), (77, 1055195), (385, 211039)]