12947935

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 21081600

約数和(自身を除く): 8133665

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 169, 199, 385, 455, 715, 845, 995, 1001, 1183, 1393, 1859, 2189, 2587, 5005, 5915, 6965, 9295, 10945, 12935, 13013, 15323, 18109, 28457, 33631, 65065, 76615, 90545, 142285, 168155, 199199, 235417, 369941, 995995, 1177085, 1849705, 2589587, 12947935]

約数ペア:

[(1, 12947935), (5, 2589587), (7, 1849705), (11, 1177085), (13, 995995), (35, 369941), (55, 235417), (65, 199199), (77, 168155), (91, 142285), (143, 90545), (169, 76615), (199, 65065), (385, 33631), (455, 28457), (715, 18109), (845, 15323), (995, 13013), (1001, 12935), (1183, 10945), (1393, 9295), (1859, 6965), (2189, 5915), (2587, 5005)]