19289860

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10837}}^1$

素因数の和:10935

約数の個数: 24

約数和(自身を含む): 40967640

約数和(自身を除く): 21677780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 10837, 21674, 43348, 54185, 108370, 216740, 964493, 1928986, 3857972, 4822465, 9644930, 19289860]

約数ペア:

[(1, 19289860), (2, 9644930), (4, 4822465), (5, 3857972), (10, 1928986), (20, 964493), (89, 216740), (178, 108370), (356, 54185), (445, 43348), (890, 21674), (1780, 10837)]