8990780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5051}}^1$

素因数の和:5149

約数の個数: 24

約数和(自身を含む): 19096560

約数和(自身を除く): 10105780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 5051, 10102, 20204, 25255, 50510, 101020, 449539, 899078, 1798156, 2247695, 4495390, 8990780]

約数ペア:

[(1, 8990780), (2, 4495390), (4, 2247695), (5, 1798156), (10, 899078), (20, 449539), (89, 101020), (178, 50510), (356, 25255), (445, 20204), (890, 10102), (1780, 5051)]