208160780

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{63853}}^1$

素因数の和:64025

約数の個数: 24

約数和(自身を含む): 439826352

約数和(自身を除く): 231665572

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 63853, 127706, 255412, 319265, 638530, 1277060, 10408039, 20816078, 41632156, 52040195, 104080390, 208160780]

約数ペア:

[(1, 208160780), (2, 104080390), (4, 52040195), (5, 41632156), (10, 20816078), (20, 10408039), (163, 1277060), (326, 638530), (652, 319265), (815, 255412), (1630, 127706), (3260, 63853)]