20388620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145633}}^1$

素因数の和:145649

約数の個数: 24

約数和(自身を含む): 48933024

約数和(自身を除く): 28544404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145633, 291266, 582532, 728165, 1019431, 1456330, 2038862, 2912660, 4077724, 5097155, 10194310, 20388620]

約数ペア:

[(1, 20388620), (2, 10194310), (4, 5097155), (5, 4077724), (7, 2912660), (10, 2038862), (14, 1456330), (20, 1019431), (28, 728165), (35, 582532), (70, 291266), (140, 145633)]