25693520

素因数分解:

$2^4\times 5^1\times {\mathrm{321169}}^1$

素因数の和:321182

約数の個数: 20

約数和(自身を含む): 59737620

約数和(自身を除く): 34044100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 321169, 642338, 1284676, 1605845, 2569352, 3211690, 5138704, 6423380, 12846760, 25693520]

約数ペア:

[(1, 25693520), (2, 12846760), (4, 6423380), (5, 5138704), (8, 3211690), (10, 2569352), (16, 1605845), (20, 1284676), (40, 642338), (80, 321169)]