19582480

素因数分解:

$2^4\times 5^1\times {\mathrm{244781}}^1$

素因数の和:244794

約数の個数: 20

約数和(自身を含む): 45529452

約数和(自身を除く): 25946972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244781, 489562, 979124, 1223905, 1958248, 2447810, 3916496, 4895620, 9791240, 19582480]

約数ペア:

[(1, 19582480), (2, 9791240), (4, 4895620), (5, 3916496), (8, 2447810), (10, 1958248), (16, 1223905), (20, 979124), (40, 489562), (80, 244781)]