25506220

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8123}}^1$

素因数の和:8289

約数の個数: 24

約数和(自身を含む): 53910864

約数和(自身を除く): 28404644

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 8123, 16246, 32492, 40615, 81230, 162460, 1275311, 2550622, 5101244, 6376555, 12753110, 25506220]

約数ペア:

[(1, 25506220), (2, 12753110), (4, 6376555), (5, 5101244), (10, 2550622), (20, 1275311), (157, 162460), (314, 81230), (628, 40615), (785, 32492), (1570, 16246), (3140, 8123)]