20759050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 42106680

約数和(自身を除く): 21347630

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 130, 218, 293, 325, 545, 586, 650, 1090, 1417, 1465, 2725, 2834, 2930, 3809, 5450, 7085, 7325, 7618, 14170, 14650, 19045, 31937, 35425, 38090, 63874, 70850, 95225, 159685, 190450, 319370, 415181, 798425, 830362, 1596850, 2075905, 4151810, 10379525, 20759050]

約数ペア:

[(1, 20759050), (2, 10379525), (5, 4151810), (10, 2075905), (13, 1596850), (25, 830362), (26, 798425), (50, 415181), (65, 319370), (109, 190450), (130, 159685), (218, 95225), (293, 70850), (325, 63874), (545, 38090), (586, 35425), (650, 31937), (1090, 19045), (1417, 14650), (1465, 14170), (2725, 7618), (2834, 7325), (2930, 7085), (3809, 5450)]