390530

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{797}}^1$

素因数の和:818

約数の個数: 24

約数和(自身を含む): 818748

約数和(自身を除く): 428218

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 797, 1594, 3985, 5579, 7970, 11158, 27895, 39053, 55790, 78106, 195265, 390530]

約数ペア:

[(1, 390530), (2, 195265), (5, 78106), (7, 55790), (10, 39053), (14, 27895), (35, 11158), (49, 7970), (70, 5579), (98, 3985), (245, 1594), (490, 797)]