199949180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{112331}}^1$

素因数の和:112429

約数の個数: 24

約数和(自身を含む): 424614960

約数和(自身を除く): 224665780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 112331, 224662, 449324, 561655, 1123310, 2246620, 9997459, 19994918, 39989836, 49987295, 99974590, 199949180]

約数ペア:

[(1, 199949180), (2, 99974590), (4, 49987295), (5, 39989836), (10, 19994918), (20, 9997459), (89, 2246620), (178, 1123310), (356, 561655), (445, 449324), (890, 224662), (1780, 112331)]