15680205

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 29203200

約数和(自身を除く): 13522995

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 103, 153, 199, 255, 309, 515, 597, 765, 927, 995, 1545, 1751, 1791, 2985, 3383, 4635, 5253, 8755, 8955, 10149, 15759, 16915, 20497, 26265, 30447, 50745, 61491, 78795, 102485, 152235, 184473, 307455, 348449, 922365, 1045347, 1742245, 3136041, 5226735, 15680205]

約数ペア:

[(1, 15680205), (3, 5226735), (5, 3136041), (9, 1742245), (15, 1045347), (17, 922365), (45, 348449), (51, 307455), (85, 184473), (103, 152235), (153, 102485), (199, 78795), (255, 61491), (309, 50745), (515, 30447), (597, 26265), (765, 20497), (927, 16915), (995, 15759), (1545, 10149), (1751, 8955), (1791, 8755), (2985, 5253), (3383, 4635)]