18890545

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{2143}}^1$

素因数の和:2232

約数の個数: 16

約数和(自身を含む): 23772672

約数和(自身を除く): 4882127

約数列:

[1, 5, 41, 43, 205, 215, 1763, 2143, 8815, 10715, 87863, 92149, 439315, 460745, 3778109, 18890545]

約数ペア:

[(1, 18890545), (5, 3778109), (41, 460745), (43, 439315), (205, 92149), (215, 87863), (1763, 10715), (2143, 8815)]