256671909

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2621}}^1$

素因数の和:2680

約数の個数: 48

約数和(自身を含む): 427574784

約数和(自身を除く): 170902875

約数列:

[1, 3, 9, 13, 27, 31, 39, 81, 93, 117, 243, 279, 351, 403, 837, 1053, 1209, 2511, 2621, 3159, 3627, 7533, 7863, 10881, 23589, 32643, 34073, 70767, 81251, 97929, 102219, 212301, 243753, 306657, 636903, 731259, 919971, 1056263, 2193777, 2759913, 3168789, 6581331, 8279739, 9506367, 19743993, 28519101, 85557303, 256671909]

約数ペア:

[(1, 256671909), (3, 85557303), (9, 28519101), (13, 19743993), (27, 9506367), (31, 8279739), (39, 6581331), (81, 3168789), (93, 2759913), (117, 2193777), (243, 1056263), (279, 919971), (351, 731259), (403, 636903), (837, 306657), (1053, 243753), (1209, 212301), (2511, 102219), (2621, 97929), (3159, 81251), (3627, 70767), (7533, 34073), (7863, 32643), (10881, 23589)]