20198488540

素因数分解:

$2^2\times 5^1\times {\mathrm{140521}}^1\times {\mathrm{7187}}^1$

素因数の和:147717

約数の個数: 24

約数和(自身を含む): 42423029712

約数和(自身を除く): 22224541172

約数列:

[1, 2, 4, 5, 10, 20, 7187, 14374, 28748, 35935, 71870, 140521, 143740, 281042, 562084, 702605, 1405210, 2810420, 1009924427, 2019848854, 4039697708, 5049622135, 10099244270, 20198488540]

約数ペア:

[(1, 20198488540), (2, 10099244270), (4, 5049622135), (5, 4039697708), (10, 2019848854), (20, 1009924427), (7187, 2810420), (14374, 1405210), (28748, 702605), (35935, 562084), (71870, 281042), (140521, 143740)]