781060

素因数分解:

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

素因数の和:820

約数の個数: 36

約数和(自身を含む): 1910412

約数和(自身を除く): 1129352

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 797, 980, 1594, 3188, 3985, 5579, 7970, 11158, 15940, 22316, 27895, 39053, 55790, 78106, 111580, 156212, 195265, 390530, 781060]

約数ペア:

[(1, 781060), (2, 390530), (4, 195265), (5, 156212), (7, 111580), (10, 78106), (14, 55790), (20, 39053), (28, 27895), (35, 22316), (49, 15940), (70, 11158), (98, 7970), (140, 5579), (196, 3985), (245, 3188), (490, 1594), (797, 980)]