81291195

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{11807}}^1$

素因数の和:11841

約数の個数: 40

約数和(自身を含む): 154306944

約数和(自身を除く): 73015749

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885, 11807, 35421, 59035, 106263, 177105, 200719, 318789, 531315, 602157, 956367, 1003595, 1593945, 1806471, 3010785, 4781835, 5419413, 9032355, 16258239, 27097065, 81291195]

約数ペア:

[(1, 81291195), (3, 27097065), (5, 16258239), (9, 9032355), (15, 5419413), (17, 4781835), (27, 3010785), (45, 1806471), (51, 1593945), (81, 1003595), (85, 956367), (135, 602157), (153, 531315), (255, 318789), (405, 200719), (459, 177105), (765, 106263), (1377, 59035), (2295, 35421), (6885, 11807)]