290291239

素因数分解:

$7^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{461}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 345080736

約数和(自身を除く): 54789497

約数列:

[1, 7, 49, 71, 181, 461, 497, 1267, 3227, 3479, 8869, 12851, 22589, 32731, 83441, 89957, 229117, 584087, 629699, 1603819, 4088609, 5924311, 41470177, 290291239]

約数ペア:

[(1, 290291239), (7, 41470177), (49, 5924311), (71, 4088609), (181, 1603819), (461, 629699), (497, 584087), (1267, 229117), (3227, 89957), (3479, 83441), (8869, 32731), (12851, 22589)]