289404080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{516793}}^1$

素因数の和:516813

約数の個数: 40

約数和(自身を含む): 768989472

約数和(自身を除く): 479585392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 516793, 1033586, 2067172, 2583965, 3617551, 4134344, 5167930, 7235102, 8268688, 10335860, 14470204, 18087755, 20671720, 28940408, 36175510, 41343440, 57880816, 72351020, 144702040, 289404080]

約数ペア:

[(1, 289404080), (2, 144702040), (4, 72351020), (5, 57880816), (7, 41343440), (8, 36175510), (10, 28940408), (14, 20671720), (16, 18087755), (20, 14470204), (28, 10335860), (35, 8268688), (40, 7235102), (56, 5167930), (70, 4134344), (80, 3617551), (112, 2583965), (140, 2067172), (280, 1033586), (560, 516793)]