256460414

素因数分解:

$2^1\times 7^4\times {\mathrm{53407}}^1$

素因数の和:53437

約数の個数: 20

約数和(自身を含む): 448787424

約数和(自身を除く): 192327010

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 53407, 106814, 373849, 747698, 2616943, 5233886, 18318601, 36637202, 128230207, 256460414]

約数ペア:

[(1, 256460414), (2, 128230207), (7, 36637202), (14, 18318601), (49, 5233886), (98, 2616943), (343, 747698), (686, 373849), (2401, 106814), (4802, 53407)]