20087680

素因数分解:

$2^7\times 5^1\times {\mathrm{31387}}^1$

素因数の和:31406

約数の個数: 32

約数和(自身を含む): 48023640

約数和(自身を除く): 27935960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31387, 62774, 125548, 156935, 251096, 313870, 502192, 627740, 1004384, 1255480, 2008768, 2510960, 4017536, 5021920, 10043840, 20087680]

約数ペア:

[(1, 20087680), (2, 10043840), (4, 5021920), (5, 4017536), (8, 2510960), (10, 2008768), (16, 1255480), (20, 1004384), (32, 627740), (40, 502192), (64, 313870), (80, 251096), (128, 156935), (160, 125548), (320, 62774), (640, 31387)]