261519721346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1061}}^1\times {\mathrm{47639}}^1$

素因数の和:48914

約数の個数: 32

約数和(自身を含む): 424986912000

約数和(自身を除く): 163467190654

約数列:

[1, 2, 13, 26, 199, 398, 1061, 2122, 2587, 5174, 13793, 27586, 47639, 95278, 211139, 422278, 619307, 1238614, 2744807, 5489614, 9480161, 18960322, 50544979, 101089958, 123242093, 246484186, 657084727, 1314169454, 10058450821, 20116901642, 130759860673, 261519721346]

約数ペア:

[(1, 261519721346), (2, 130759860673), (13, 20116901642), (26, 10058450821), (199, 1314169454), (398, 657084727), (1061, 246484186), (2122, 123242093), (2587, 101089958), (5174, 50544979), (13793, 18960322), (27586, 9480161), (47639, 5489614), (95278, 2744807), (211139, 1238614), (422278, 619307)]