20213255728

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{309109}}^1$

素因数の和:309245

約数の個数: 40

約数和(自身を含む): 40399440560

約数和(自身を除く): 20186184832

約数列:

[1, 2, 4, 8, 16, 61, 67, 122, 134, 244, 268, 488, 536, 976, 1072, 4087, 8174, 16348, 32696, 65392, 309109, 618218, 1236436, 2472872, 4945744, 18855649, 20710303, 37711298, 41420606, 75422596, 82841212, 150845192, 165682424, 301690384, 331364848, 1263328483, 2526656966, 5053313932, 10106627864, 20213255728]

約数ペア:

[(1, 20213255728), (2, 10106627864), (4, 5053313932), (8, 2526656966), (16, 1263328483), (61, 331364848), (67, 301690384), (122, 165682424), (134, 150845192), (244, 82841212), (268, 75422596), (488, 41420606), (536, 37711298), (976, 20710303), (1072, 18855649), (4087, 4945744), (8174, 2472872), (16348, 1236436), (32696, 618218), (65392, 309109)]