2020405465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{4919}}^1$

素因数の和:5097

約数の個数: 32

約数和(自身を含む): 2678054400

約数和(自身を除く): 657648935

約数列:

[1, 5, 13, 65, 71, 89, 355, 445, 923, 1157, 4615, 4919, 5785, 6319, 24595, 31595, 63947, 82147, 319735, 349249, 410735, 437791, 1746245, 2188955, 4540237, 5691283, 22701185, 28456415, 31083161, 155415805, 404081093, 2020405465]

約数ペア:

[(1, 2020405465), (5, 404081093), (13, 155415805), (65, 31083161), (71, 28456415), (89, 22701185), (355, 5691283), (445, 4540237), (923, 2188955), (1157, 1746245), (4615, 437791), (4919, 410735), (5785, 349249), (6319, 319735), (24595, 82147), (31595, 63947)]