40205180

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8009}}^1$

素因数の和:8269

約数の個数: 24

約数和(自身を含む): 84777840

約数和(自身を除く): 44572660

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 8009, 16018, 32036, 40045, 80090, 160180, 2010259, 4020518, 8041036, 10051295, 20102590, 40205180]

約数ペア:

[(1, 40205180), (2, 20102590), (4, 10051295), (5, 8041036), (10, 4020518), (20, 2010259), (251, 160180), (502, 80090), (1004, 40045), (1255, 32036), (2510, 16018), (5020, 8009)]