205736681488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{989118661}}^1$

素因数の和:989118682

約数の個数: 20

約数和(自身を含む): 429277499308

約数和(自身を除く): 223540817820

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 989118661, 1978237322, 3956474644, 7912949288, 12858542593, 15825898576, 25717085186, 51434170372, 102868340744, 205736681488]

約数ペア:

[(1, 205736681488), (2, 102868340744), (4, 51434170372), (8, 25717085186), (13, 15825898576), (16, 12858542593), (26, 7912949288), (52, 3956474644), (104, 1978237322), (208, 989118661)]