201620185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{859}}^1$

素因数の和:1057

約数の個数: 32

約数和(自身を含む): 273934080

約数和(自身を除く): 72313895

約数列:

[1, 5, 13, 23, 65, 115, 157, 299, 785, 859, 1495, 2041, 3611, 4295, 10205, 11167, 18055, 19757, 46943, 55835, 98785, 134863, 234715, 256841, 674315, 1284205, 1753219, 3101849, 8766095, 15509245, 40324037, 201620185]

約数ペア:

[(1, 201620185), (5, 40324037), (13, 15509245), (23, 8766095), (65, 3101849), (115, 1753219), (157, 1284205), (299, 674315), (785, 256841), (859, 234715), (1495, 134863), (2041, 98785), (3611, 55835), (4295, 46943), (10205, 19757), (11167, 18055)]