2050871920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{361069}}^1$

素因数の和:361153

約数の個数: 40

約数和(自身を含む): 4835449440

約数和(自身を除く): 2784577520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 361069, 722138, 1444276, 1805345, 2888552, 3610690, 5777104, 7221380, 14442760, 25635899, 28885520, 51271798, 102543596, 128179495, 205087192, 256358990, 410174384, 512717980, 1025435960, 2050871920]

約数ペア:

[(1, 2050871920), (2, 1025435960), (4, 512717980), (5, 410174384), (8, 256358990), (10, 205087192), (16, 128179495), (20, 102543596), (40, 51271798), (71, 28885520), (80, 25635899), (142, 14442760), (284, 7221380), (355, 5777104), (568, 3610690), (710, 2888552), (1136, 1805345), (1420, 1444276), (2840, 722138), (5680, 361069)]