451280

素因数分解:

$2^4\times 5^1\times {\mathrm{5641}}^1$

素因数の和:5654

約数の個数: 20

約数和(自身を含む): 1049412

約数和(自身を除く): 598132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5641, 11282, 22564, 28205, 45128, 56410, 90256, 112820, 225640, 451280]

約数ペア:

[(1, 451280), (2, 225640), (4, 112820), (5, 90256), (8, 56410), (10, 45128), (16, 28205), (20, 22564), (40, 11282), (80, 5641)]