205606143

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 328536000

約数和(自身を除く): 122929857

約数列:

[1, 3, 9, 17, 29, 51, 87, 149, 153, 261, 311, 447, 493, 933, 1341, 1479, 2533, 2799, 4321, 4437, 5287, 7599, 9019, 12963, 15861, 22797, 27057, 38889, 46339, 47583, 73457, 81171, 139017, 153323, 220371, 417051, 459969, 661113, 787763, 1343831, 1379907, 2363289, 4031493, 7089867, 12094479, 22845127, 68535381, 205606143]

約数ペア:

[(1, 205606143), (3, 68535381), (9, 22845127), (17, 12094479), (29, 7089867), (51, 4031493), (87, 2363289), (149, 1379907), (153, 1343831), (261, 787763), (311, 661113), (447, 459969), (493, 417051), (933, 220371), (1341, 153323), (1479, 139017), (2533, 81171), (2799, 73457), (4321, 47583), (4437, 46339), (5287, 38889), (7599, 27057), (9019, 22797), (12963, 15861)]