1990262005

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{110909}}^1$

素因数の和:111048

約数の個数: 16

約数和(自身を含む): 2478173040

約数和(自身を除く): 487911035

約数列:

[1, 5, 37, 97, 185, 485, 3589, 17945, 110909, 554545, 4103633, 10758173, 20518165, 53790865, 398052401, 1990262005]

約数ペア:

[(1, 1990262005), (5, 398052401), (37, 53790865), (97, 20518165), (185, 10758173), (485, 4103633), (3589, 554545), (17945, 110909)]