78693555

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 129830400

約数和(自身を除く): 51136845

約数列:

[1, 3, 5, 15, 41, 123, 199, 205, 597, 615, 643, 995, 1929, 2985, 3215, 8159, 9645, 24477, 26363, 40795, 79089, 122385, 127957, 131815, 383871, 395445, 639785, 1919355, 5246237, 15738711, 26231185, 78693555]

約数ペア:

[(1, 78693555), (3, 26231185), (5, 15738711), (15, 5246237), (41, 1919355), (123, 639785), (199, 395445), (205, 383871), (597, 131815), (615, 127957), (643, 122385), (995, 79089), (1929, 40795), (2985, 26363), (3215, 24477), (8159, 9645)]