2019920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{3607}}^1$

素因数の和:3627

約数の個数: 40

約数和(自身を含む): 5368704

約数和(自身を除く): 3348784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 3607, 7214, 14428, 18035, 25249, 28856, 36070, 50498, 57712, 72140, 100996, 126245, 144280, 201992, 252490, 288560, 403984, 504980, 1009960, 2019920]

約数ペア:

[(1, 2019920), (2, 1009960), (4, 504980), (5, 403984), (7, 288560), (8, 252490), (10, 201992), (14, 144280), (16, 126245), (20, 100996), (28, 72140), (35, 57712), (40, 50498), (56, 36070), (70, 28856), (80, 25249), (112, 18035), (140, 14428), (280, 7214), (560, 3607)]