205119145

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 319334400

約数和(自身を除く): 114215255

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 83, 131, 245, 343, 385, 415, 539, 581, 655, 913, 917, 1441, 1715, 2695, 2905, 3773, 4067, 4565, 4585, 6391, 6419, 7205, 10087, 10873, 18865, 20335, 28469, 31955, 32095, 44737, 44933, 50435, 54365, 70609, 76111, 119603, 142345, 223685, 224665, 313159, 353045, 380555, 494263, 532777, 598015, 837221, 1565795, 2471315, 2663885, 3729439, 4186105, 5860547, 18647195, 29302735, 41023829, 205119145]

約数ペア:

[(1, 205119145), (5, 41023829), (7, 29302735), (11, 18647195), (35, 5860547), (49, 4186105), (55, 3729439), (77, 2663885), (83, 2471315), (131, 1565795), (245, 837221), (343, 598015), (385, 532777), (415, 494263), (539, 380555), (581, 353045), (655, 313159), (913, 224665), (917, 223685), (1441, 142345), (1715, 119603), (2695, 76111), (2905, 70609), (3773, 54365), (4067, 50435), (4565, 44933), (4585, 44737), (6391, 32095), (6419, 31955), (7205, 28469), (10087, 20335), (10873, 18865)]