19037680

素因数分解:

$2^4\times 5^1\times {\mathrm{237971}}^1$

素因数の和:237984

約数の個数: 20

約数和(自身を含む): 44262792

約数和(自身を除く): 25225112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 237971, 475942, 951884, 1189855, 1903768, 2379710, 3807536, 4759420, 9518840, 19037680]

約数ペア:

[(1, 19037680), (2, 9518840), (4, 4759420), (5, 3807536), (8, 2379710), (10, 1903768), (16, 1189855), (20, 951884), (40, 475942), (80, 237971)]