816980985

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{118661}}^1$

素因数の和:118695

約数の個数: 40

約数和(自身を含む): 1550675016

約数和(自身を除く): 733694031

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885, 118661, 355983, 593305, 1067949, 1779915, 2017237, 3203847, 5339745, 6051711, 9611541, 10086185, 16019235, 18155133, 30258555, 48057705, 54465399, 90775665, 163396197, 272326995, 816980985]

約数ペア:

[(1, 816980985), (3, 272326995), (5, 163396197), (9, 90775665), (15, 54465399), (17, 48057705), (27, 30258555), (45, 18155133), (51, 16019235), (81, 10086185), (85, 9611541), (135, 6051711), (153, 5339745), (255, 3203847), (405, 2017237), (459, 1779915), (765, 1067949), (1377, 593305), (2295, 355983), (6885, 118661)]