19319120

素因数分解:

$2^4\times 5^1\times {\mathrm{241489}}^1$

素因数の和:241502

約数の個数: 20

約数和(自身を含む): 44917140

約数和(自身を除く): 25598020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241489, 482978, 965956, 1207445, 1931912, 2414890, 3863824, 4829780, 9659560, 19319120]

約数ペア:

[(1, 19319120), (2, 9659560), (4, 4829780), (5, 3863824), (8, 2414890), (10, 1931912), (16, 1207445), (20, 965956), (40, 482978), (80, 241489)]