19251280

素因数分解:

$2^4\times 5^1\times {\mathrm{240641}}^1$

素因数の和:240654

約数の個数: 20

約数和(自身を含む): 44759412

約数和(自身を除く): 25508132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240641, 481282, 962564, 1203205, 1925128, 2406410, 3850256, 4812820, 9625640, 19251280]

約数ペア:

[(1, 19251280), (2, 9625640), (4, 4812820), (5, 3850256), (8, 2406410), (10, 1925128), (16, 1203205), (20, 962564), (40, 481282), (80, 240641)]