20071755

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 41513472

約数和(自身を除く): 21441717

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 41, 43, 45, 55, 69, 99, 115, 123, 129, 165, 205, 207, 215, 253, 345, 369, 387, 451, 473, 495, 615, 645, 759, 943, 989, 1035, 1265, 1353, 1419, 1763, 1845, 1935, 2255, 2277, 2365, 2829, 2967, 3795, 4059, 4257, 4715, 4945, 5289, 6765, 7095, 8487, 8815, 8901, 10373, 10879, 11385, 14145, 14835, 15867, 19393, 20295, 21285, 26445, 31119, 32637, 40549, 42435, 44505, 51865, 54395, 58179, 79335, 93357, 96965, 97911, 121647, 155595, 163185, 174537, 202745, 290895, 364941, 446039, 466785, 489555, 608235, 872685, 1338117, 1824705, 2230195, 4014351, 6690585, 20071755]

約数ペア:

[(1, 20071755), (3, 6690585), (5, 4014351), (9, 2230195), (11, 1824705), (15, 1338117), (23, 872685), (33, 608235), (41, 489555), (43, 466785), (45, 446039), (55, 364941), (69, 290895), (99, 202745), (115, 174537), (123, 163185), (129, 155595), (165, 121647), (205, 97911), (207, 96965), (215, 93357), (253, 79335), (345, 58179), (369, 54395), (387, 51865), (451, 44505), (473, 42435), (495, 40549), (615, 32637), (645, 31119), (759, 26445), (943, 21285), (989, 20295), (1035, 19393), (1265, 15867), (1353, 14835), (1419, 14145), (1763, 11385), (1845, 10879), (1935, 10373), (2255, 8901), (2277, 8815), (2365, 8487), (2829, 7095), (2967, 6765), (3795, 5289), (4059, 4945), (4257, 4715)]