257843738

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{613}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 407833536

約数和(自身を除く): 149989798

約数列:

[1, 2, 43, 67, 73, 86, 134, 146, 613, 1226, 2881, 3139, 4891, 5762, 6278, 9782, 26359, 41071, 44749, 52718, 82142, 89498, 210313, 420626, 1766053, 1924207, 2998183, 3532106, 3848414, 5996366, 128921869, 257843738]

約数ペア:

[(1, 257843738), (2, 128921869), (43, 5996366), (67, 3848414), (73, 3532106), (86, 2998183), (134, 1924207), (146, 1766053), (613, 420626), (1226, 210313), (2881, 89498), (3139, 82142), (4891, 52718), (5762, 44749), (6278, 41071), (9782, 26359)]