66913780

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{18691}}^1$

素因数の和:18879

約数の個数: 24

約数和(自身を含む): 141311520

約数和(自身を除く): 74397740

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 18691, 37382, 74764, 93455, 186910, 373820, 3345689, 6691378, 13382756, 16728445, 33456890, 66913780]

約数ペア:

[(1, 66913780), (2, 33456890), (4, 16728445), (5, 13382756), (10, 6691378), (20, 3345689), (179, 373820), (358, 186910), (716, 93455), (895, 74764), (1790, 37382), (3580, 18691)]