21979427380

素因数分解:

$2^2\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{879881}}^1$

素因数の和:881139

約数の個数: 24

約数和(自身を含む): 46193805000

約数和(自身を除く): 24214377620

約数列:

[1, 2, 4, 5, 10, 20, 1249, 2498, 4996, 6245, 12490, 24980, 879881, 1759762, 3519524, 4399405, 8798810, 17597620, 1098971369, 2197942738, 4395885476, 5494856845, 10989713690, 21979427380]

約数ペア:

[(1, 21979427380), (2, 10989713690), (4, 5494856845), (5, 4395885476), (10, 2197942738), (20, 1098971369), (1249, 17597620), (2498, 8798810), (4996, 4399405), (6245, 3519524), (12490, 1759762), (24980, 879881)]