28620945

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4157}}^1$

素因数の和:4191

約数の個数: 40

約数和(自身を含む): 54336744

約数和(自身を除く): 25715799

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 4157, 6885, 12471, 20785, 37413, 62355, 70669, 112239, 187065, 212007, 336717, 353345, 561195, 636021, 1060035, 1683585, 1908063, 3180105, 5724189, 9540315, 28620945]

約数ペア:

[(1, 28620945), (3, 9540315), (5, 5724189), (9, 3180105), (15, 1908063), (17, 1683585), (27, 1060035), (45, 636021), (51, 561195), (81, 353345), (85, 336717), (135, 212007), (153, 187065), (255, 112239), (405, 70669), (459, 62355), (765, 37413), (1377, 20785), (2295, 12471), (4157, 6885)]