495265640

素因数分解:

$2^3\times 5^1\times {\mathrm{12381641}}^1$

素因数の和:12381652

約数の個数: 16

約数和(自身を含む): 1114347780

約数和(自身を除く): 619082140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12381641, 24763282, 49526564, 61908205, 99053128, 123816410, 247632820, 495265640]

約数ペア:

[(1, 495265640), (2, 247632820), (4, 123816410), (5, 99053128), (8, 61908205), (10, 49526564), (20, 24763282), (40, 12381641)]