25891280

素因数分解:

$2^4\times 5^1\times {\mathrm{323641}}^1$

素因数の和:323654

約数の個数: 20

約数和(自身を含む): 60197412

約数和(自身を除く): 34306132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 323641, 647282, 1294564, 1618205, 2589128, 3236410, 5178256, 6472820, 12945640, 25891280]

約数ペア:

[(1, 25891280), (2, 12945640), (4, 6472820), (5, 5178256), (8, 3236410), (10, 2589128), (16, 1618205), (20, 1294564), (40, 647282), (80, 323641)]