13578325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 18266688

約数和(自身を除く): 4688363

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 743, 1075, 3655, 3715, 12631, 18275, 18575, 31949, 63155, 159745, 315775, 543133, 798725, 2715665, 13578325]

約数ペア:

[(1, 13578325), (5, 2715665), (17, 798725), (25, 543133), (43, 315775), (85, 159745), (215, 63155), (425, 31949), (731, 18575), (743, 18275), (1075, 12631), (3655, 3715)]