19238480

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2381}}^1$

素因数の和:2495

約数の個数: 40

約数和(自身を含む): 45191304

約数和(自身を除く): 25952824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 2381, 4040, 4762, 8080, 9524, 11905, 19048, 23810, 38096, 47620, 95240, 190480, 240481, 480962, 961924, 1202405, 1923848, 2404810, 3847696, 4809620, 9619240, 19238480]

約数ペア:

[(1, 19238480), (2, 9619240), (4, 4809620), (5, 3847696), (8, 2404810), (10, 1923848), (16, 1202405), (20, 961924), (40, 480962), (80, 240481), (101, 190480), (202, 95240), (404, 47620), (505, 38096), (808, 23810), (1010, 19048), (1616, 11905), (2020, 9524), (2381, 8080), (4040, 4762)]