20081165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1069}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 27593160

約数和(自身を除く): 7511995

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 1069, 1105, 1445, 3757, 5345, 13897, 18173, 18785, 69485, 90865, 236249, 308941, 1181245, 1544705, 4016233, 20081165]

約数ペア:

[(1, 20081165), (5, 4016233), (13, 1544705), (17, 1181245), (65, 308941), (85, 236249), (221, 90865), (289, 69485), (1069, 18785), (1105, 18173), (1445, 13897), (3757, 5345)]