256880057

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{66601}}^1$

素因数の和:66656

約数の個数: 16

約数和(自身を含む): 319689600

約数和(自身を除く): 62809543

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 66601, 466207, 1265419, 1931429, 8857933, 13520003, 36697151, 256880057]

約数ペア:

[(1, 256880057), (7, 36697151), (19, 13520003), (29, 8857933), (133, 1931429), (203, 1265419), (551, 466207), (3857, 66601)]