20178091492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388040221}}^1$

素因数の和:388040238

約数の個数: 12

約数和(自身を含む): 38027941756

約数和(自身を除く): 17849850264

約数列:

[1, 2, 4, 13, 26, 52, 388040221, 776080442, 1552160884, 5044522873, 10089045746, 20178091492]

約数ペア:

[(1, 20178091492), (2, 10089045746), (4, 5044522873), (13, 1552160884), (26, 776080442), (52, 388040221)]