81555942

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{487}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 186923520

約数和(自身を除く): 105367578

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 57, 78, 113, 114, 226, 247, 339, 487, 494, 678, 741, 974, 1461, 1469, 1482, 2147, 2922, 2938, 4294, 4407, 6331, 6441, 8814, 9253, 12662, 12882, 18506, 18993, 27759, 27911, 37986, 55031, 55518, 55822, 83733, 110062, 120289, 165093, 167466, 240578, 330186, 360867, 715403, 721734, 1045589, 1430806, 2091178, 2146209, 3136767, 4292418, 6273534, 13592657, 27185314, 40777971, 81555942]

約数ペア:

[(1, 81555942), (2, 40777971), (3, 27185314), (6, 13592657), (13, 6273534), (19, 4292418), (26, 3136767), (38, 2146209), (39, 2091178), (57, 1430806), (78, 1045589), (113, 721734), (114, 715403), (226, 360867), (247, 330186), (339, 240578), (487, 167466), (494, 165093), (678, 120289), (741, 110062), (974, 83733), (1461, 55822), (1469, 55518), (1482, 55031), (2147, 37986), (2922, 27911), (2938, 27759), (4294, 18993), (4407, 18506), (6331, 12882), (6441, 12662), (8814, 9253)]