16380080

素因数分解:

$2^4\times 5^1\times {\mathrm{204751}}^1$

素因数の和:204764

約数の個数: 20

約数和(自身を含む): 38083872

約数和(自身を除く): 21703792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 204751, 409502, 819004, 1023755, 1638008, 2047510, 3276016, 4095020, 8190040, 16380080]

約数ペア:

[(1, 16380080), (2, 8190040), (4, 4095020), (5, 3276016), (8, 2047510), (10, 1638008), (16, 1023755), (20, 819004), (40, 409502), (80, 204751)]