19109560

素因数分解:

$2^3\times 5^1\times {\mathrm{477739}}^1$

素因数の和:477750

約数の個数: 16

約数和(自身を含む): 42996600

約数和(自身を除く): 23887040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 477739, 955478, 1910956, 2388695, 3821912, 4777390, 9554780, 19109560]

約数ペア:

[(1, 19109560), (2, 9554780), (4, 4777390), (5, 3821912), (8, 2388695), (10, 1910956), (20, 955478), (40, 477739)]