28256780

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{12503}}^1$

素因数の和:12625

約数の個数: 24

約数和(自身を含む): 59869152

約数和(自身を除く): 31612372

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 12503, 25006, 50012, 62515, 125030, 250060, 1412839, 2825678, 5651356, 7064195, 14128390, 28256780]

約数ペア:

[(1, 28256780), (2, 14128390), (4, 7064195), (5, 5651356), (10, 2825678), (20, 1412839), (113, 250060), (226, 125030), (452, 62515), (565, 50012), (1130, 25006), (2260, 12503)]