28158585

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:463

約数の個数: 64

約数和(自身を含む): 56716800

約数和(自身を除く): 28558215

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 343, 421, 455, 637, 735, 1029, 1263, 1365, 1715, 1911, 2105, 2947, 3185, 4459, 5145, 5473, 6315, 8841, 9555, 13377, 14735, 16419, 20629, 22295, 27365, 38311, 44205, 61887, 66885, 82095, 103145, 114933, 144403, 191555, 268177, 309435, 433209, 574665, 722015, 804531, 1340885, 1877239, 2166045, 4022655, 5631717, 9386195, 28158585]

約数ペア:

[(1, 28158585), (3, 9386195), (5, 5631717), (7, 4022655), (13, 2166045), (15, 1877239), (21, 1340885), (35, 804531), (39, 722015), (49, 574665), (65, 433209), (91, 309435), (105, 268177), (147, 191555), (195, 144403), (245, 114933), (273, 103145), (343, 82095), (421, 66885), (455, 61887), (637, 44205), (735, 38311), (1029, 27365), (1263, 22295), (1365, 20629), (1715, 16419), (1911, 14735), (2105, 13377), (2947, 9555), (3185, 8841), (4459, 6315), (5145, 5473)]