20199985468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388461259}}^1$

素因数の和:388461276

約数の個数: 12

約数和(自身を含む): 38069203480

約数和(自身を除く): 17869218012

約数列:

[1, 2, 4, 13, 26, 52, 388461259, 776922518, 1553845036, 5049996367, 10099992734, 20199985468]

約数ペア:

[(1, 20199985468), (2, 10099992734), (4, 5049996367), (13, 1553845036), (26, 776922518), (52, 388461259)]