128249615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{419}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 176541120

約数和(自身を除く): 48291505

約数列:

[1, 5, 13, 17, 65, 85, 221, 277, 419, 1105, 1385, 2095, 3601, 4709, 5447, 7123, 18005, 23545, 27235, 35615, 61217, 92599, 116063, 306085, 462995, 580315, 1508819, 1973071, 7544095, 9865355, 25649923, 128249615]

約数ペア:

[(1, 128249615), (5, 25649923), (13, 9865355), (17, 7544095), (65, 1973071), (85, 1508819), (221, 580315), (277, 462995), (419, 306085), (1105, 116063), (1385, 92599), (2095, 61217), (3601, 35615), (4709, 27235), (5447, 23545), (7123, 18005)]