20388740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35153}}^1$

素因数の和:35191

約数の個数: 24

約数和(自身を含む): 44294040

約数和(自身を除く): 23905300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35153, 70306, 140612, 175765, 351530, 703060, 1019437, 2038874, 4077748, 5097185, 10194370, 20388740]

約数ペア:

[(1, 20388740), (2, 10194370), (4, 5097185), (5, 4077748), (10, 2038874), (20, 1019437), (29, 703060), (58, 351530), (116, 175765), (145, 140612), (290, 70306), (580, 35153)]