19895960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10151}}^1$

素因数の和:10176

約数の個数: 48

約数和(自身を含む): 52079760

約数和(自身を除く): 32183800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10151, 20302, 40604, 50755, 71057, 81208, 101510, 142114, 203020, 284228, 355285, 406040, 497399, 568456, 710570, 994798, 1421140, 1989596, 2486995, 2842280, 3979192, 4973990, 9947980, 19895960]

約数ペア:

[(1, 19895960), (2, 9947980), (4, 4973990), (5, 3979192), (7, 2842280), (8, 2486995), (10, 1989596), (14, 1421140), (20, 994798), (28, 710570), (35, 568456), (40, 497399), (49, 406040), (56, 355285), (70, 284228), (98, 203020), (140, 142114), (196, 101510), (245, 81208), (280, 71057), (392, 50755), (490, 40604), (980, 20302), (1960, 10151)]