2017657420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{259339}}^1$

素因数の和:259737

約数の個数: 24

約数和(自身を含む): 4247989200

約数和(自身を除く): 2230331780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 259339, 518678, 1037356, 1296695, 2593390, 5186780, 100882871, 201765742, 403531484, 504414355, 1008828710, 2017657420]

約数ペア:

[(1, 2017657420), (2, 1008828710), (4, 504414355), (5, 403531484), (10, 201765742), (20, 100882871), (389, 5186780), (778, 2593390), (1556, 1296695), (1945, 1037356), (3890, 518678), (7780, 259339)]