12487340

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1109}}^1$

素因数の和:1681

約数の個数: 24

約数和(自身を含む): 26293680

約数和(自身を除く): 13806340

約数列:

[1, 2, 4, 5, 10, 20, 563, 1109, 1126, 2218, 2252, 2815, 4436, 5545, 5630, 11090, 11260, 22180, 624367, 1248734, 2497468, 3121835, 6243670, 12487340]

約数ペア:

[(1, 12487340), (2, 6243670), (4, 3121835), (5, 2497468), (10, 1248734), (20, 624367), (563, 22180), (1109, 11260), (1126, 11090), (2218, 5630), (2252, 5545), (2815, 4436)]