1277780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9127}}^1$

素因数の和:9143

約数の個数: 24

約数和(自身を含む): 3067008

約数和(自身を除く): 1789228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9127, 18254, 36508, 45635, 63889, 91270, 127778, 182540, 255556, 319445, 638890, 1277780]

約数ペア:

[(1, 1277780), (2, 638890), (4, 319445), (5, 255556), (7, 182540), (10, 127778), (14, 91270), (20, 63889), (28, 45635), (35, 36508), (70, 18254), (140, 9127)]