28268025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{22171}}^1$

素因数の和:22201

約数の個数: 24

約数和(自身を含む): 49487904

約数和(自身を除く): 21219879

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 22171, 66513, 110855, 332565, 376907, 554275, 1130721, 1662825, 1884535, 5653605, 9422675, 28268025]

約数ペア:

[(1, 28268025), (3, 9422675), (5, 5653605), (15, 1884535), (17, 1662825), (25, 1130721), (51, 554275), (75, 376907), (85, 332565), (255, 110855), (425, 66513), (1275, 22171)]