205920385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{1021}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 285505920

約数和(自身を除く): 79585535

約数列:

[1, 5, 11, 19, 55, 95, 193, 209, 965, 1021, 1045, 2123, 3667, 5105, 10615, 11231, 18335, 19399, 40337, 56155, 96995, 197053, 201685, 213389, 985265, 1066945, 2167583, 3744007, 10837915, 18720035, 41184077, 205920385]

約数ペア:

[(1, 205920385), (5, 41184077), (11, 18720035), (19, 10837915), (55, 3744007), (95, 2167583), (193, 1066945), (209, 985265), (965, 213389), (1021, 201685), (1045, 197053), (2123, 96995), (3667, 56155), (5105, 40337), (10615, 19399), (11231, 18335)]