257070819

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{331}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 363340800

約数和(自身を除く): 106269981

約数列:

[1, 3, 29, 79, 87, 113, 237, 331, 339, 993, 2291, 3277, 6873, 8927, 9599, 9831, 26149, 26781, 28797, 37403, 78447, 112209, 258883, 758321, 776649, 1084687, 2274963, 2954837, 3254061, 8864511, 85690273, 257070819]

約数ペア:

[(1, 257070819), (3, 85690273), (29, 8864511), (79, 3254061), (87, 2954837), (113, 2274963), (237, 1084687), (331, 776649), (339, 758321), (993, 258883), (2291, 112209), (3277, 78447), (6873, 37403), (8927, 28797), (9599, 26781), (9831, 26149)]