7944140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4463}}^1$

素因数の和:4561

約数の個数: 24

約数和(自身を含む): 16873920

約数和(自身を除く): 8929780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 4463, 8926, 17852, 22315, 44630, 89260, 397207, 794414, 1588828, 1986035, 3972070, 7944140]

約数ペア:

[(1, 7944140), (2, 3972070), (4, 1986035), (5, 1588828), (10, 794414), (20, 397207), (89, 89260), (178, 44630), (356, 22315), (445, 17852), (890, 8926), (1780, 4463)]