20348611280

素因数分解:

$2^4\times 5^1\times {\mathrm{254357641}}^1$

素因数の和:254357654

約数の個数: 20

約数和(自身を含む): 47310521412

約数和(自身を除く): 26961910132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254357641, 508715282, 1017430564, 1271788205, 2034861128, 2543576410, 4069722256, 5087152820, 10174305640, 20348611280]

約数ペア:

[(1, 20348611280), (2, 10174305640), (4, 5087152820), (5, 4069722256), (8, 2543576410), (10, 2034861128), (16, 1271788205), (20, 1017430564), (40, 508715282), (80, 254357641)]