87415820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{40099}}^1$

素因数の和:40217

約数の個数: 24

約数和(自身を含む): 185262000

約数和(自身を除く): 97846180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 40099, 80198, 160396, 200495, 400990, 801980, 4370791, 8741582, 17483164, 21853955, 43707910, 87415820]

約数ペア:

[(1, 87415820), (2, 43707910), (4, 21853955), (5, 17483164), (10, 8741582), (20, 4370791), (109, 801980), (218, 400990), (436, 200495), (545, 160396), (1090, 80198), (2180, 40099)]