19893475

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 30791680

約数和(自身を除く): 10898205

約数列:

[1, 5, 7, 19, 25, 31, 35, 95, 133, 155, 175, 193, 217, 475, 589, 665, 775, 965, 1085, 1351, 2945, 3325, 3667, 4123, 4825, 5425, 5983, 6755, 14725, 18335, 20615, 25669, 29915, 33775, 41881, 91675, 103075, 113677, 128345, 149575, 209405, 568385, 641725, 795739, 1047025, 2841925, 3978695, 19893475]

約数ペア:

[(1, 19893475), (5, 3978695), (7, 2841925), (19, 1047025), (25, 795739), (31, 641725), (35, 568385), (95, 209405), (133, 149575), (155, 128345), (175, 113677), (193, 103075), (217, 91675), (475, 41881), (589, 33775), (665, 29915), (775, 25669), (965, 20615), (1085, 18335), (1351, 14725), (2945, 6755), (3325, 5983), (3667, 5425), (4123, 4825)]