256051215

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:398

約数の個数: 96

約数和(自身を含む): 529027200

約数和(自身を除く): 272975985

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 53, 63, 105, 147, 159, 245, 265, 313, 315, 343, 371, 441, 477, 735, 795, 939, 1029, 1113, 1565, 1715, 1855, 2191, 2205, 2385, 2597, 2817, 3087, 3339, 4695, 5145, 5565, 6573, 7791, 10955, 12985, 14085, 15337, 15435, 16589, 16695, 18179, 19719, 23373, 32865, 38955, 46011, 49767, 54537, 76685, 82945, 90895, 98595, 107359, 116123, 116865, 138033, 149301, 163611, 230055, 248835, 272685, 322077, 348369, 536795, 580615, 690165, 746505, 812861, 818055, 966231, 1045107, 1610385, 1741845, 2438583, 4064305, 4831155, 5225535, 5690027, 7315749, 12192915, 17070081, 28450135, 36578745, 51210243, 85350405, 256051215]

約数ペア:

[(1, 256051215), (3, 85350405), (5, 51210243), (7, 36578745), (9, 28450135), (15, 17070081), (21, 12192915), (35, 7315749), (45, 5690027), (49, 5225535), (53, 4831155), (63, 4064305), (105, 2438583), (147, 1741845), (159, 1610385), (245, 1045107), (265, 966231), (313, 818055), (315, 812861), (343, 746505), (371, 690165), (441, 580615), (477, 536795), (735, 348369), (795, 322077), (939, 272685), (1029, 248835), (1113, 230055), (1565, 163611), (1715, 149301), (1855, 138033), (2191, 116865), (2205, 116123), (2385, 107359), (2597, 98595), (2817, 90895), (3087, 82945), (3339, 76685), (4695, 54537), (5145, 49767), (5565, 46011), (6573, 38955), (7791, 32865), (10955, 23373), (12985, 19719), (14085, 18179), (15337, 16695), (15435, 16589)]