279254495

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 412231680

約数和(自身を除く): 132977185

約数列:

[1, 5, 13, 17, 19, 47, 65, 85, 95, 221, 235, 247, 283, 323, 611, 799, 893, 1105, 1235, 1415, 1615, 3055, 3679, 3995, 4199, 4465, 4811, 5377, 10387, 11609, 13301, 15181, 18395, 20995, 24055, 26885, 51935, 58045, 62543, 66505, 69901, 75905, 91409, 172913, 197353, 226117, 252719, 312715, 349505, 457045, 864565, 986765, 1130585, 1188317, 1263595, 2939521, 3285347, 4296223, 5941585, 14697605, 16426735, 21481115, 55850899, 279254495]

約数ペア:

[(1, 279254495), (5, 55850899), (13, 21481115), (17, 16426735), (19, 14697605), (47, 5941585), (65, 4296223), (85, 3285347), (95, 2939521), (221, 1263595), (235, 1188317), (247, 1130585), (283, 986765), (323, 864565), (611, 457045), (799, 349505), (893, 312715), (1105, 252719), (1235, 226117), (1415, 197353), (1615, 172913), (3055, 91409), (3679, 75905), (3995, 69901), (4199, 66505), (4465, 62543), (4811, 58045), (5377, 51935), (10387, 26885), (11609, 24055), (13301, 20995), (15181, 18395)]