31380555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 53697600

約数和(自身を除く): 22317045

約数列:

[1, 3, 5, 15, 17, 51, 85, 109, 255, 327, 545, 1129, 1635, 1853, 3387, 5559, 5645, 9265, 16935, 19193, 27795, 57579, 95965, 123061, 287895, 369183, 615305, 1845915, 2092037, 6276111, 10460185, 31380555]

約数ペア:

[(1, 31380555), (3, 10460185), (5, 6276111), (15, 2092037), (17, 1845915), (51, 615305), (85, 369183), (109, 287895), (255, 123061), (327, 95965), (545, 57579), (1129, 27795), (1635, 19193), (1853, 16935), (3387, 9265), (5559, 5645)]