20040140

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1303}}^1$

素因数の和:2081

約数の個数: 24

約数和(自身を含む): 42171360

約数和(自身を除く): 22131220

約数列:

[1, 2, 4, 5, 10, 20, 769, 1303, 1538, 2606, 3076, 3845, 5212, 6515, 7690, 13030, 15380, 26060, 1002007, 2004014, 4008028, 5010035, 10020070, 20040140]

約数ペア:

[(1, 20040140), (2, 10020070), (4, 5010035), (5, 4008028), (10, 2004014), (20, 1002007), (769, 26060), (1303, 15380), (1538, 13030), (2606, 7690), (3076, 6515), (3845, 5212)]