18455680

素因数分解:

$2^7\times 5^1\times {\mathrm{28837}}^1$

素因数の和:28856

約数の個数: 32

約数和(自身を含む): 44122140

約数和(自身を除く): 25666460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28837, 57674, 115348, 144185, 230696, 288370, 461392, 576740, 922784, 1153480, 1845568, 2306960, 3691136, 4613920, 9227840, 18455680]

約数ペア:

[(1, 18455680), (2, 9227840), (4, 4613920), (5, 3691136), (8, 2306960), (10, 1845568), (16, 1153480), (20, 922784), (32, 576740), (40, 461392), (64, 288370), (80, 230696), (128, 144185), (160, 115348), (320, 57674), (640, 28837)]