824140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{463}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 1753920

約数和(自身を除く): 929780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 463, 890, 926, 1780, 1852, 2315, 4630, 9260, 41207, 82414, 164828, 206035, 412070, 824140]

約数ペア:

[(1, 824140), (2, 412070), (4, 206035), (5, 164828), (10, 82414), (20, 41207), (89, 9260), (178, 4630), (356, 2315), (445, 1852), (463, 1780), (890, 926)]