4006780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2251}}^1$

素因数の和:2349

約数の個数: 24

約数和(自身を含む): 8512560

約数和(自身を除く): 4505780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 2251, 4502, 9004, 11255, 22510, 45020, 200339, 400678, 801356, 1001695, 2003390, 4006780]

約数ペア:

[(1, 4006780), (2, 2003390), (4, 1001695), (5, 801356), (10, 400678), (20, 200339), (89, 45020), (178, 22510), (356, 11255), (445, 9004), (890, 4502), (1780, 2251)]