1287804560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2299651}}^1$

素因数の和:2299671

約数の個数: 40

約数和(自身を含む): 3421882176

約数和(自身を除く): 2134077616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2299651, 4599302, 9198604, 11498255, 16097557, 18397208, 22996510, 32195114, 36794416, 45993020, 64390228, 80487785, 91986040, 128780456, 160975570, 183972080, 257560912, 321951140, 643902280, 1287804560]

約数ペア:

[(1, 1287804560), (2, 643902280), (4, 321951140), (5, 257560912), (7, 183972080), (8, 160975570), (10, 128780456), (14, 91986040), (16, 80487785), (20, 64390228), (28, 45993020), (35, 36794416), (40, 32195114), (56, 22996510), (70, 18397208), (80, 16097557), (112, 11498255), (140, 9198604), (280, 4599302), (560, 2299651)]