25218940

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3083}}^1$

素因数の和:3501

約数の個数: 24

約数和(自身を含む): 53106480

約数和(自身を除く): 27887540

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 3083, 4090, 6166, 8180, 12332, 15415, 30830, 61660, 1260947, 2521894, 5043788, 6304735, 12609470, 25218940]

約数ペア:

[(1, 25218940), (2, 12609470), (4, 6304735), (5, 5043788), (10, 2521894), (20, 1260947), (409, 61660), (818, 30830), (1636, 15415), (2045, 12332), (3083, 8180), (4090, 6166)]