278877891

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1951}}^1$

素因数の和:2067

約数の個数: 32

約数和(自身を含む): 404766720

約数和(自身を除く): 125888829

約数列:

[1, 3, 29, 31, 53, 87, 93, 159, 899, 1537, 1643, 1951, 2697, 4611, 4929, 5853, 47647, 56579, 60481, 103403, 142941, 169737, 181443, 310209, 1753949, 2998687, 3205493, 5261847, 8996061, 9616479, 92959297, 278877891]

約数ペア:

[(1, 278877891), (3, 92959297), (29, 9616479), (31, 8996061), (53, 5261847), (87, 3205493), (93, 2998687), (159, 1753949), (899, 310209), (1537, 181443), (1643, 169737), (1951, 142941), (2697, 103403), (4611, 60481), (4929, 56579), (5853, 47647)]