20767480

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{17903}}^1$

素因数の和:17943

約数の個数: 32

約数和(自身を含む): 48340800

約数和(自身を除く): 27573320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 17903, 35806, 71612, 89515, 143224, 179030, 358060, 519187, 716120, 1038374, 2076748, 2595935, 4153496, 5191870, 10383740, 20767480]

約数ペア:

[(1, 20767480), (2, 10383740), (4, 5191870), (5, 4153496), (8, 2595935), (10, 2076748), (20, 1038374), (29, 716120), (40, 519187), (58, 358060), (116, 179030), (145, 143224), (232, 89515), (290, 71612), (580, 35806), (1160, 17903)]