1280335964

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1\times {\mathrm{641}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 2365282080

約数和(自身を除く): 1084946116

約数列:

[1, 2, 4, 29, 58, 67, 116, 134, 257, 268, 514, 641, 1028, 1282, 1943, 2564, 3886, 7453, 7772, 14906, 17219, 18589, 29812, 34438, 37178, 42947, 68876, 74356, 85894, 164737, 171788, 329474, 499351, 658948, 998702, 1245463, 1997404, 2490926, 4777373, 4981852, 9554746, 11037379, 19109492, 22074758, 44149516, 320083991, 640167982, 1280335964]

約数ペア:

[(1, 1280335964), (2, 640167982), (4, 320083991), (29, 44149516), (58, 22074758), (67, 19109492), (116, 11037379), (134, 9554746), (257, 4981852), (268, 4777373), (514, 2490926), (641, 1997404), (1028, 1245463), (1282, 998702), (1943, 658948), (2564, 499351), (3886, 329474), (7453, 171788), (7772, 164737), (14906, 85894), (17219, 74356), (18589, 68876), (29812, 42947), (34438, 37178)]