19267660

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1489}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 40551840

約数和(自身を除く): 21284180

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1489, 2588, 2978, 3235, 5956, 6470, 7445, 12940, 14890, 29780, 963383, 1926766, 3853532, 4816915, 9633830, 19267660]

約数ペア:

[(1, 19267660), (2, 9633830), (4, 4816915), (5, 3853532), (10, 1926766), (20, 963383), (647, 29780), (1294, 14890), (1489, 12940), (2588, 7445), (2978, 6470), (3235, 5956)]