20162180

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2339}}^1$

素因数の和:2779

約数の個数: 24

約数和(自身を含む): 42456960

約数和(自身を除く): 22294780

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 2339, 4310, 4678, 8620, 9356, 11695, 23390, 46780, 1008109, 2016218, 4032436, 5040545, 10081090, 20162180]

約数ペア:

[(1, 20162180), (2, 10081090), (4, 5040545), (5, 4032436), (10, 2016218), (20, 1008109), (431, 46780), (862, 23390), (1724, 11695), (2155, 9356), (2339, 8620), (4310, 4678)]