2019355

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{661}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 2669184

約数和(自身を除く): 649829

約数列:

[1, 5, 13, 47, 65, 235, 611, 661, 3055, 3305, 8593, 31067, 42965, 155335, 403871, 2019355]

約数ペア:

[(1, 2019355), (5, 403871), (13, 155335), (47, 42965), (65, 31067), (235, 8593), (611, 3305), (661, 3055)]