80717936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{388067}}^1$

素因数の和:388088

約数の個数: 20

約数和(自身を含む): 168421512

約数和(自身を除く): 87703576

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 388067, 776134, 1552268, 3104536, 5044871, 6209072, 10089742, 20179484, 40358968, 80717936]

約数ペア:

[(1, 80717936), (2, 40358968), (4, 20179484), (8, 10089742), (13, 6209072), (16, 5044871), (26, 3104536), (52, 1552268), (104, 776134), (208, 388067)]