20412560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36451}}^1$

素因数の和:36471

約数の個数: 40

約数和(自身を含む): 54240576

約数和(自身を除く): 33828016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36451, 72902, 145804, 182255, 255157, 291608, 364510, 510314, 583216, 729020, 1020628, 1275785, 1458040, 2041256, 2551570, 2916080, 4082512, 5103140, 10206280, 20412560]

約数ペア:

[(1, 20412560), (2, 10206280), (4, 5103140), (5, 4082512), (7, 2916080), (8, 2551570), (10, 2041256), (14, 1458040), (16, 1275785), (20, 1020628), (28, 729020), (35, 583216), (40, 510314), (56, 364510), (70, 291608), (80, 255157), (112, 182255), (140, 145804), (280, 72902), (560, 36451)]