2551911755

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 3483786240

約数和(自身を除く): 931874485

約数列:

[1, 5, 19, 23, 43, 95, 115, 157, 173, 215, 437, 785, 817, 865, 989, 2185, 2983, 3287, 3611, 3979, 4085, 4945, 6751, 7439, 14915, 16435, 18055, 18791, 19895, 27161, 33755, 37195, 68609, 75601, 93955, 128269, 135805, 141341, 155273, 171097, 343045, 378005, 516059, 624703, 641345, 706705, 776365, 855485, 1167923, 2580295, 2950187, 3123515, 3250843, 5839615, 11869357, 14750935, 16254215, 22190537, 26862229, 59346785, 110952685, 134311145, 510382351, 2551911755]

約数ペア:

[(1, 2551911755), (5, 510382351), (19, 134311145), (23, 110952685), (43, 59346785), (95, 26862229), (115, 22190537), (157, 16254215), (173, 14750935), (215, 11869357), (437, 5839615), (785, 3250843), (817, 3123515), (865, 2950187), (989, 2580295), (2185, 1167923), (2983, 855485), (3287, 776365), (3611, 706705), (3979, 641345), (4085, 624703), (4945, 516059), (6751, 378005), (7439, 343045), (14915, 171097), (16435, 155273), (18055, 141341), (18791, 135805), (19895, 128269), (27161, 93955), (33755, 75601), (37195, 68609)]