18762860

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2137}}^1$

素因数の和:2585

約数の個数: 24

約数和(自身を含む): 39510240

約数和(自身を除く): 20747380

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2137, 2195, 4274, 4390, 8548, 8780, 10685, 21370, 42740, 938143, 1876286, 3752572, 4690715, 9381430, 18762860]

約数ペア:

[(1, 18762860), (2, 9381430), (4, 4690715), (5, 3752572), (10, 1876286), (20, 938143), (439, 42740), (878, 21370), (1756, 10685), (2137, 8780), (2195, 8548), (4274, 4390)]