18807680

素因数分解:

$2^7\times 5^1\times {\mathrm{29387}}^1$

素因数の和:29406

約数の個数: 32

約数和(自身を含む): 44963640

約数和(自身を除く): 26155960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 29387, 58774, 117548, 146935, 235096, 293870, 470192, 587740, 940384, 1175480, 1880768, 2350960, 3761536, 4701920, 9403840, 18807680]

約数ペア:

[(1, 18807680), (2, 9403840), (4, 4701920), (5, 3761536), (8, 2350960), (10, 1880768), (16, 1175480), (20, 940384), (32, 587740), (40, 470192), (64, 293870), (80, 235096), (128, 146935), (160, 117548), (320, 58774), (640, 29387)]