5131215

素因数分解:

$3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 9216000

約数和(自身を除く): 4084785

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 191, 199, 573, 597, 955, 995, 1719, 1791, 2865, 2985, 5157, 5373, 8595, 8955, 25785, 26865, 38009, 114027, 190045, 342081, 570135, 1026243, 1710405, 5131215]

約数ペア:

[(1, 5131215), (3, 1710405), (5, 1026243), (9, 570135), (15, 342081), (27, 190045), (45, 114027), (135, 38009), (191, 26865), (199, 25785), (573, 8955), (597, 8595), (955, 5373), (995, 5157), (1719, 2985), (1791, 2865)]