19830280

素因数分解:

$2^3\times 5^1\times {\mathrm{495757}}^1$

素因数の和:495768

約数の個数: 16

約数和(自身を含む): 44618220

約数和(自身を除く): 24787940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 495757, 991514, 1983028, 2478785, 3966056, 4957570, 9915140, 19830280]

約数ペア:

[(1, 19830280), (2, 9915140), (4, 4957570), (5, 3966056), (8, 2478785), (10, 1983028), (20, 991514), (40, 495757)]