280059920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{500107}}^1$

素因数の和:500127

約数の個数: 40

約数和(自身を含む): 744160704

約数和(自身を除く): 464100784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 500107, 1000214, 2000428, 2500535, 3500749, 4000856, 5001070, 7001498, 8001712, 10002140, 14002996, 17503745, 20004280, 28005992, 35007490, 40008560, 56011984, 70014980, 140029960, 280059920]

約数ペア:

[(1, 280059920), (2, 140029960), (4, 70014980), (5, 56011984), (7, 40008560), (8, 35007490), (10, 28005992), (14, 20004280), (16, 17503745), (20, 14002996), (28, 10002140), (35, 8001712), (40, 7001498), (56, 5001070), (70, 4000856), (80, 3500749), (112, 2500535), (140, 2000428), (280, 1000214), (560, 500107)]