18506420

素因数分解:

$2^2\times 5^1\times {\mathrm{433}}^1\times {\mathrm{2137}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 38971464

約数和(自身を除く): 20465044

約数列:

[1, 2, 4, 5, 10, 20, 433, 866, 1732, 2137, 2165, 4274, 4330, 8548, 8660, 10685, 21370, 42740, 925321, 1850642, 3701284, 4626605, 9253210, 18506420]

約数ペア:

[(1, 18506420), (2, 9253210), (4, 4626605), (5, 3701284), (10, 1850642), (20, 925321), (433, 42740), (866, 21370), (1732, 10685), (2137, 8660), (2165, 8548), (4274, 4330)]