19836940

素因数分解:

$2^2\times 5^1\times {\mathrm{983}}^1\times {\mathrm{1009}}^1$

素因数の和:2001

約数の個数: 24

約数和(自身を含む): 41741280

約数和(自身を除く): 21904340

約数列:

[1, 2, 4, 5, 10, 20, 983, 1009, 1966, 2018, 3932, 4036, 4915, 5045, 9830, 10090, 19660, 20180, 991847, 1983694, 3967388, 4959235, 9918470, 19836940]

約数ペア:

[(1, 19836940), (2, 9918470), (4, 4959235), (5, 3967388), (10, 1983694), (20, 991847), (983, 20180), (1009, 19660), (1966, 10090), (2018, 9830), (3932, 5045), (4036, 4915)]