256220146

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{45413}}^1$

素因数の和:45466

約数の個数: 32

約数和(自身を含む): 488291328

約数和(自身を除く): 232071182

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 5642, 45413, 90826, 317891, 590369, 635782, 1180738, 1407803, 2815606, 4132583, 8265166, 9854621, 18301439, 19709242, 36602878, 128110073, 256220146]

約数ペア:

[(1, 256220146), (2, 128110073), (7, 36602878), (13, 19709242), (14, 18301439), (26, 9854621), (31, 8265166), (62, 4132583), (91, 2815606), (182, 1407803), (217, 1180738), (403, 635782), (434, 590369), (806, 317891), (2821, 90826), (5642, 45413)]