1681360

素因数分解:

$2^4\times 5^1\times {\mathrm{21017}}^1$

素因数の和:21030

約数の個数: 20

約数和(自身を含む): 3909348

約数和(自身を除く): 2227988

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21017, 42034, 84068, 105085, 168136, 210170, 336272, 420340, 840680, 1681360]

約数ペア:

[(1, 1681360), (2, 840680), (4, 420340), (5, 336272), (8, 210170), (10, 168136), (16, 105085), (20, 84068), (40, 42034), (80, 21017)]