17643920

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{643}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 47913600

約数和(自身を除く): 30269680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 643, 686, 784, 980, 1286, 1372, 1715, 1960, 2572, 2744, 3215, 3430, 3920, 4501, 5144, 5488, 6430, 6860, 9002, 10288, 12860, 13720, 18004, 22505, 25720, 27440, 31507, 36008, 45010, 51440, 63014, 72016, 90020, 126028, 157535, 180040, 220549, 252056, 315070, 360080, 441098, 504112, 630140, 882196, 1102745, 1260280, 1764392, 2205490, 2520560, 3528784, 4410980, 8821960, 17643920]

約数ペア:

[(1, 17643920), (2, 8821960), (4, 4410980), (5, 3528784), (7, 2520560), (8, 2205490), (10, 1764392), (14, 1260280), (16, 1102745), (20, 882196), (28, 630140), (35, 504112), (40, 441098), (49, 360080), (56, 315070), (70, 252056), (80, 220549), (98, 180040), (112, 157535), (140, 126028), (196, 90020), (245, 72016), (280, 63014), (343, 51440), (392, 45010), (490, 36008), (560, 31507), (643, 27440), (686, 25720), (784, 22505), (980, 18004), (1286, 13720), (1372, 12860), (1715, 10288), (1960, 9002), (2572, 6860), (2744, 6430), (3215, 5488), (3430, 5144), (3920, 4501)]