2661640

素因数分解:

$2^3\times 5^1\times {\mathrm{66541}}^1$

素因数の和:66552

約数の個数: 16

約数和(自身を含む): 5988780

約数和(自身を除く): 3327140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 66541, 133082, 266164, 332705, 532328, 665410, 1330820, 2661640]

約数ペア:

[(1, 2661640), (2, 1330820), (4, 665410), (5, 532328), (8, 332705), (10, 266164), (20, 133082), (40, 66541)]