12381640

素因数分解:

$2^3\times 5^1\times {\mathrm{309541}}^1$

素因数の和:309552

約数の個数: 16

約数和(自身を含む): 27858780

約数和(自身を除く): 15477140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 309541, 619082, 1238164, 1547705, 2476328, 3095410, 6190820, 12381640]

約数ペア:

[(1, 12381640), (2, 6190820), (4, 3095410), (5, 2476328), (8, 1547705), (10, 1238164), (20, 619082), (40, 309541)]