20178507920

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3764647}}^1$

素因数の和:3764727

約数の個数: 40

約数和(自身を含む): 47615267904

約数和(自身を除く): 27436759984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 3764647, 7529294, 15058588, 18823235, 30117176, 37646470, 60234352, 75292940, 150585880, 252231349, 301171760, 504462698, 1008925396, 1261156745, 2017850792, 2522313490, 4035701584, 5044626980, 10089253960, 20178507920]

約数ペア:

[(1, 20178507920), (2, 10089253960), (4, 5044626980), (5, 4035701584), (8, 2522313490), (10, 2017850792), (16, 1261156745), (20, 1008925396), (40, 504462698), (67, 301171760), (80, 252231349), (134, 150585880), (268, 75292940), (335, 60234352), (536, 37646470), (670, 30117176), (1072, 18823235), (1340, 15058588), (2680, 7529294), (5360, 3764647)]