12840325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:333

約数の個数: 24

約数和(自身を含む): 16838208

約数和(自身を除く): 3997883

約数列:

[1, 5, 23, 25, 115, 137, 163, 575, 685, 815, 3151, 3425, 3749, 4075, 15755, 18745, 22331, 78775, 93725, 111655, 513613, 558275, 2568065, 12840325]

約数ペア:

[(1, 12840325), (5, 2568065), (23, 558275), (25, 513613), (115, 111655), (137, 93725), (163, 78775), (575, 22331), (685, 18745), (815, 15755), (3151, 4075), (3425, 3749)]