256766397

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{461}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 364041216

約数和(自身を除く): 107274819

約数列:

[1, 3, 31, 53, 93, 113, 159, 339, 461, 1383, 1643, 3503, 4929, 5989, 10509, 14291, 17967, 24433, 42873, 52093, 73299, 156279, 185659, 556977, 757423, 1614883, 2272269, 2760929, 4844649, 8282787, 85588799, 256766397]

約数ペア:

[(1, 256766397), (3, 85588799), (31, 8282787), (53, 4844649), (93, 2760929), (113, 2272269), (159, 1614883), (339, 757423), (461, 556977), (1383, 185659), (1643, 156279), (3503, 73299), (4929, 52093), (5989, 42873), (10509, 24433), (14291, 17967)]