156615985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 205286400

約数和(自身を除く): 48670415

約数列:

[1, 5, 17, 47, 85, 197, 199, 235, 799, 985, 995, 3349, 3383, 3995, 9259, 9353, 16745, 16915, 39203, 46295, 46765, 157403, 159001, 196015, 666451, 787015, 795005, 1842541, 3332255, 9212705, 31323197, 156615985]

約数ペア:

[(1, 156615985), (5, 31323197), (17, 9212705), (47, 3332255), (85, 1842541), (197, 795005), (199, 787015), (235, 666451), (799, 196015), (985, 159001), (995, 157403), (3349, 46765), (3383, 46295), (3995, 39203), (9259, 16915), (9353, 16745)]