209737755

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:818

約数の個数: 80

約数和(自身を含む): 408348864

約数和(自身を除く): 198611109

約数列:

[1, 3, 5, 9, 15, 17, 27, 41, 45, 51, 81, 85, 123, 135, 153, 205, 255, 369, 405, 459, 615, 697, 743, 765, 1107, 1377, 1845, 2091, 2229, 2295, 3321, 3485, 3715, 5535, 6273, 6687, 6885, 10455, 11145, 12631, 16605, 18819, 20061, 30463, 31365, 33435, 37893, 56457, 60183, 63155, 91389, 94095, 100305, 113679, 152315, 189465, 274167, 282285, 300915, 341037, 456945, 517871, 568395, 822501, 1023111, 1370835, 1553613, 1705185, 2467503, 2589355, 4112505, 4660839, 5115555, 7768065, 12337515, 13982517, 23304195, 41947551, 69912585, 209737755]

約数ペア:

[(1, 209737755), (3, 69912585), (5, 41947551), (9, 23304195), (15, 13982517), (17, 12337515), (27, 7768065), (41, 5115555), (45, 4660839), (51, 4112505), (81, 2589355), (85, 2467503), (123, 1705185), (135, 1553613), (153, 1370835), (205, 1023111), (255, 822501), (369, 568395), (405, 517871), (459, 456945), (615, 341037), (697, 300915), (743, 282285), (765, 274167), (1107, 189465), (1377, 152315), (1845, 113679), (2091, 100305), (2229, 94095), (2295, 91389), (3321, 63155), (3485, 60183), (3715, 56457), (5535, 37893), (6273, 33435), (6687, 31365), (6885, 30463), (10455, 20061), (11145, 18819), (12631, 16605)]