19945030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{571}}^1$

素因数の和:1084

約数の個数: 32

約数和(自身を含む): 41184000

約数和(自身を除く): 21238970

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 499, 571, 998, 1142, 2495, 2855, 3493, 3997, 4990, 5710, 6986, 7994, 17465, 19985, 34930, 39970, 284929, 569858, 1424645, 1994503, 2849290, 3989006, 9972515, 19945030]

約数ペア:

[(1, 19945030), (2, 9972515), (5, 3989006), (7, 2849290), (10, 1994503), (14, 1424645), (35, 569858), (70, 284929), (499, 39970), (571, 34930), (998, 19985), (1142, 17465), (2495, 7994), (2855, 6986), (3493, 5710), (3997, 4990)]