218084720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{389437}}^1$

素因数の和:389457

約数の個数: 40

約数和(自身を含む): 579483744

約数和(自身を除く): 361399024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 389437, 778874, 1557748, 1947185, 2726059, 3115496, 3894370, 5452118, 6230992, 7788740, 10904236, 13630295, 15577480, 21808472, 27260590, 31154960, 43616944, 54521180, 109042360, 218084720]

約数ペア:

[(1, 218084720), (2, 109042360), (4, 54521180), (5, 43616944), (7, 31154960), (8, 27260590), (10, 21808472), (14, 15577480), (16, 13630295), (20, 10904236), (28, 7788740), (35, 6230992), (40, 5452118), (56, 3894370), (70, 3115496), (80, 2726059), (112, 1947185), (140, 1557748), (280, 778874), (560, 389437)]