17884720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 48121920

約数和(自身を除く): 30237200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 293, 436, 545, 560, 586, 763, 872, 1090, 1172, 1465, 1526, 1744, 2051, 2180, 2344, 2930, 3052, 3815, 4102, 4360, 4688, 5860, 6104, 7630, 8204, 8720, 10255, 11720, 12208, 15260, 16408, 20510, 23440, 30520, 31937, 32816, 41020, 61040, 63874, 82040, 127748, 159685, 164080, 223559, 255496, 319370, 447118, 510992, 638740, 894236, 1117795, 1277480, 1788472, 2235590, 2554960, 3576944, 4471180, 8942360, 17884720]

約数ペア:

[(1, 17884720), (2, 8942360), (4, 4471180), (5, 3576944), (7, 2554960), (8, 2235590), (10, 1788472), (14, 1277480), (16, 1117795), (20, 894236), (28, 638740), (35, 510992), (40, 447118), (56, 319370), (70, 255496), (80, 223559), (109, 164080), (112, 159685), (140, 127748), (218, 82040), (280, 63874), (293, 61040), (436, 41020), (545, 32816), (560, 31937), (586, 30520), (763, 23440), (872, 20510), (1090, 16408), (1172, 15260), (1465, 12208), (1526, 11720), (1744, 10255), (2051, 8720), (2180, 8204), (2344, 7630), (2930, 6104), (3052, 5860), (3815, 4688), (4102, 4360)]