20600720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36787}}^1$

素因数の和:36807

約数の個数: 40

約数和(自身を含む): 54740544

約数和(自身を除く): 34139824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36787, 73574, 147148, 183935, 257509, 294296, 367870, 515018, 588592, 735740, 1030036, 1287545, 1471480, 2060072, 2575090, 2942960, 4120144, 5150180, 10300360, 20600720]

約数ペア:

[(1, 20600720), (2, 10300360), (4, 5150180), (5, 4120144), (7, 2942960), (8, 2575090), (10, 2060072), (14, 1471480), (16, 1287545), (20, 1030036), (28, 735740), (35, 588592), (40, 515018), (56, 367870), (70, 294296), (80, 257509), (112, 183935), (140, 147148), (280, 73574), (560, 36787)]