28165345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 11025695

約数列:

[1, 5, 13, 17, 65, 71, 85, 221, 355, 359, 923, 1105, 1207, 1795, 4615, 4667, 6035, 6103, 15691, 23335, 25489, 30515, 78455, 79339, 127445, 331357, 396695, 433313, 1656785, 2166565, 5633069, 28165345]

約数ペア:

[(1, 28165345), (5, 5633069), (13, 2166565), (17, 1656785), (65, 433313), (71, 396695), (85, 331357), (221, 127445), (355, 79339), (359, 78455), (923, 30515), (1105, 25489), (1207, 23335), (1795, 15691), (4615, 6103), (4667, 6035)]