64550005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^2\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 24

約数和(自身を含む): 85039416

約数和(自身を除く): 20489411

約数列:

[1, 5, 13, 65, 71, 197, 355, 923, 985, 2561, 4615, 5041, 12805, 13987, 25205, 65533, 69935, 181831, 327665, 909155, 993077, 4965385, 12910001, 64550005]

約数ペア:

[(1, 64550005), (5, 12910001), (13, 4965385), (65, 993077), (71, 909155), (197, 327665), (355, 181831), (923, 69935), (985, 65533), (2561, 25205), (4615, 13987), (5041, 12805)]