18915230

素因数分解:

$2^1\times 5^1\times {\mathrm{457}}^1\times {\mathrm{4139}}^1$

素因数の和:4603

約数の個数: 16

約数和(自身を含む): 34130160

約数和(自身を除く): 15214930

約数列:

[1, 2, 5, 10, 457, 914, 2285, 4139, 4570, 8278, 20695, 41390, 1891523, 3783046, 9457615, 18915230]

約数ペア:

[(1, 18915230), (2, 9457615), (5, 3783046), (10, 1891523), (457, 41390), (914, 20695), (2285, 8278), (4139, 4570)]