20708103632

素因数分解:

$2^4\times {\mathrm{2003}}^1\times {\mathrm{646159}}^1$

素因数の和:648170

約数の個数: 20

約数和(自身を含む): 40142043840

約数和(自身を除く): 19433940208

約数列:

[1, 2, 4, 8, 16, 2003, 4006, 8012, 16024, 32048, 646159, 1292318, 2584636, 5169272, 10338544, 1294256477, 2588512954, 5177025908, 10354051816, 20708103632]

約数ペア:

[(1, 20708103632), (2, 10354051816), (4, 5177025908), (8, 2588512954), (16, 1294256477), (2003, 10338544), (4006, 5169272), (8012, 2584636), (16024, 1292318), (32048, 646159)]