997780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{7127}}^1$

素因数の和:7143

約数の個数: 24

約数和(自身を含む): 2395008

約数和(自身を除く): 1397228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 7127, 14254, 28508, 35635, 49889, 71270, 99778, 142540, 199556, 249445, 498890, 997780]

約数ペア:

[(1, 997780), (2, 498890), (4, 249445), (5, 199556), (7, 142540), (10, 99778), (14, 71270), (20, 49889), (28, 35635), (35, 28508), (70, 14254), (140, 7127)]