208581680

素因数分解:

$2^4\times 5^1\times {\mathrm{2607271}}^1$

素因数の和:2607284

約数の個数: 20

約数和(自身を含む): 484952592

約数和(自身を除く): 276370912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2607271, 5214542, 10429084, 13036355, 20858168, 26072710, 41716336, 52145420, 104290840, 208581680]

約数ペア:

[(1, 208581680), (2, 104290840), (4, 52145420), (5, 41716336), (8, 26072710), (10, 20858168), (16, 13036355), (20, 10429084), (40, 5214542), (80, 2607271)]