28265840

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2579}}^1$

素因数の和:2729

約数の個数: 40

約数和(自身を含む): 66223440

約数和(自身を除く): 37957600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2579, 2740, 5158, 5480, 10316, 10960, 12895, 20632, 25790, 41264, 51580, 103160, 206320, 353323, 706646, 1413292, 1766615, 2826584, 3533230, 5653168, 7066460, 14132920, 28265840]

約数ペア:

[(1, 28265840), (2, 14132920), (4, 7066460), (5, 5653168), (8, 3533230), (10, 2826584), (16, 1766615), (20, 1413292), (40, 706646), (80, 353323), (137, 206320), (274, 103160), (548, 51580), (685, 41264), (1096, 25790), (1370, 20632), (2192, 12895), (2579, 10960), (2740, 10316), (5158, 5480)]