19240390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{67}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 38675952

約数和(自身を除く): 19435562

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 67, 94, 130, 134, 235, 335, 470, 611, 670, 871, 1222, 1742, 2209, 3055, 3149, 4355, 4418, 6110, 6298, 8710, 11045, 15745, 22090, 28717, 31490, 40937, 57434, 81874, 143585, 148003, 204685, 287170, 296006, 409370, 740015, 1480030, 1924039, 3848078, 9620195, 19240390]

約数ペア:

[(1, 19240390), (2, 9620195), (5, 3848078), (10, 1924039), (13, 1480030), (26, 740015), (47, 409370), (65, 296006), (67, 287170), (94, 204685), (130, 148003), (134, 143585), (235, 81874), (335, 57434), (470, 40937), (611, 31490), (670, 28717), (871, 22090), (1222, 15745), (1742, 11045), (2209, 8710), (3055, 6298), (3149, 6110), (4355, 4418)]