7740820

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1109}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 16317000

約数和(自身を除く): 8576180

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1109, 1396, 1745, 2218, 3490, 4436, 5545, 6980, 11090, 22180, 387041, 774082, 1548164, 1935205, 3870410, 7740820]

約数ペア:

[(1, 7740820), (2, 3870410), (4, 1935205), (5, 1548164), (10, 774082), (20, 387041), (349, 22180), (698, 11090), (1109, 6980), (1396, 5545), (1745, 4436), (2218, 3490)]