200913380

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{72271}}^1$

素因数の和:72419

約数の個数: 24

約数和(自身を含む): 424959360

約数和(自身を除く): 224045980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 72271, 144542, 289084, 361355, 722710, 1445420, 10045669, 20091338, 40182676, 50228345, 100456690, 200913380]

約数ペア:

[(1, 200913380), (2, 100456690), (4, 50228345), (5, 40182676), (10, 20091338), (20, 10045669), (139, 1445420), (278, 722710), (556, 361355), (695, 289084), (1390, 144542), (2780, 72271)]