20332880

素因数分解:

$2^4\times 5^1\times {\mathrm{254161}}^1$

素因数の和:254174

約数の個数: 20

約数和(自身を含む): 47274132

約数和(自身を除く): 26941252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254161, 508322, 1016644, 1270805, 2033288, 2541610, 4066576, 5083220, 10166440, 20332880]

約数ペア:

[(1, 20332880), (2, 10166440), (4, 5083220), (5, 4066576), (8, 2541610), (10, 2033288), (16, 1270805), (20, 1016644), (40, 508322), (80, 254161)]