21672400

素因数分解:

$2^4\times 5^2\times {\mathrm{54181}}^1$

素因数の和:54199

約数の個数: 30

約数和(自身を含む): 52068902

約数和(自身を除く): 30396502

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54181, 108362, 216724, 270905, 433448, 541810, 866896, 1083620, 1354525, 2167240, 2709050, 4334480, 5418100, 10836200, 21672400]

約数ペア:

[(1, 21672400), (2, 10836200), (4, 5418100), (5, 4334480), (8, 2709050), (10, 2167240), (16, 1354525), (20, 1083620), (25, 866896), (40, 541810), (50, 433448), (80, 270905), (100, 216724), (200, 108362), (400, 54181)]