2019212420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1134389}}^1$

素因数の和:1134487

約数の個数: 24

約数和(自身を含む): 4287994200

約数和(自身を除く): 2268781780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 1134389, 2268778, 4537556, 5671945, 11343890, 22687780, 100960621, 201921242, 403842484, 504803105, 1009606210, 2019212420]

約数ペア:

[(1, 2019212420), (2, 1009606210), (4, 504803105), (5, 403842484), (10, 201921242), (20, 100960621), (89, 22687780), (178, 11343890), (356, 5671945), (445, 4537556), (890, 2268778), (1780, 1134389)]