2008307905

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{3943}}^1$

素因数の和:4117

約数の個数: 32

約数和(自身を含む): 2598875136

約数和(自身を除く): 590567231

約数列:

[1, 5, 23, 43, 103, 115, 215, 515, 989, 2369, 3943, 4429, 4945, 11845, 19715, 22145, 90689, 101867, 169549, 406129, 453445, 509335, 847745, 2030645, 3899627, 9340967, 17463547, 19498135, 46704835, 87317735, 401661581, 2008307905]

約数ペア:

[(1, 2008307905), (5, 401661581), (23, 87317735), (43, 46704835), (103, 19498135), (115, 17463547), (215, 9340967), (515, 3899627), (989, 2030645), (2369, 847745), (3943, 509335), (4429, 453445), (4945, 406129), (11845, 169549), (19715, 101867), (22145, 90689)]