39978740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25303}}^1$

素因数の和:25391

約数の個数: 24

約数和(自身を含む): 85021440

約数和(自身を除く): 45042700

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 25303, 50606, 101212, 126515, 253030, 506060, 1998937, 3997874, 7995748, 9994685, 19989370, 39978740]

約数ペア:

[(1, 39978740), (2, 19989370), (4, 9994685), (5, 7995748), (10, 3997874), (20, 1998937), (79, 506060), (158, 253030), (316, 126515), (395, 101212), (790, 50606), (1580, 25303)]