30138640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53819}}^1$

素因数の和:53839

約数の個数: 40

約数和(自身を含む): 80084160

約数和(自身を除く): 49945520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 53819, 107638, 215276, 269095, 376733, 430552, 538190, 753466, 861104, 1076380, 1506932, 1883665, 2152760, 3013864, 3767330, 4305520, 6027728, 7534660, 15069320, 30138640]

約数ペア:

[(1, 30138640), (2, 15069320), (4, 7534660), (5, 6027728), (7, 4305520), (8, 3767330), (10, 3013864), (14, 2152760), (16, 1883665), (20, 1506932), (28, 1076380), (35, 861104), (40, 753466), (56, 538190), (70, 430552), (80, 376733), (112, 269095), (140, 215276), (280, 107638), (560, 53819)]