72143071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:871

約数の個数: 32

約数和(自身を含む): 97993728

約数和(自身を除く): 25850657

約数列:

[1, 7, 11, 13, 77, 91, 97, 143, 679, 743, 1001, 1067, 1261, 5201, 7469, 8173, 8827, 9659, 13871, 57211, 67613, 72071, 97097, 106249, 504497, 743743, 792781, 936923, 5549467, 6558461, 10306153, 72143071]

約数ペア:

[(1, 72143071), (7, 10306153), (11, 6558461), (13, 5549467), (77, 936923), (91, 792781), (97, 743743), (143, 504497), (679, 106249), (743, 97097), (1001, 72071), (1067, 67613), (1261, 57211), (5201, 13871), (7469, 9659), (8173, 8827)]