205500009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 342558720

約数和(自身を除く): 137058711

約数列:

[1, 3, 11, 13, 23, 33, 39, 59, 69, 143, 177, 253, 299, 353, 429, 649, 759, 767, 897, 1059, 1357, 1947, 2301, 3289, 3883, 4071, 4589, 8119, 8437, 9867, 11649, 13767, 14927, 17641, 20827, 24357, 25311, 44781, 50479, 52923, 62481, 89309, 105547, 151437, 194051, 229097, 267927, 270751, 316641, 479021, 582153, 687291, 812253, 1161017, 1437063, 2978261, 3483051, 5269231, 6227273, 8934783, 15807693, 18681819, 68500003, 205500009]

約数ペア:

[(1, 205500009), (3, 68500003), (11, 18681819), (13, 15807693), (23, 8934783), (33, 6227273), (39, 5269231), (59, 3483051), (69, 2978261), (143, 1437063), (177, 1161017), (253, 812253), (299, 687291), (353, 582153), (429, 479021), (649, 316641), (759, 270751), (767, 267927), (897, 229097), (1059, 194051), (1357, 151437), (1947, 105547), (2301, 89309), (3289, 62481), (3883, 52923), (4071, 50479), (4589, 44781), (8119, 25311), (8437, 24357), (9867, 20827), (11649, 17641), (13767, 14927)]