19549360

素因数分解:

$2^4\times 5^1\times {\mathrm{244367}}^1$

素因数の和:244380

約数の個数: 20

約数和(自身を含む): 45452448

約数和(自身を除く): 25903088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244367, 488734, 977468, 1221835, 1954936, 2443670, 3909872, 4887340, 9774680, 19549360]

約数ペア:

[(1, 19549360), (2, 9774680), (4, 4887340), (5, 3909872), (8, 2443670), (10, 1954936), (16, 1221835), (20, 977468), (40, 488734), (80, 244367)]