118081520

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20789}}^1$

素因数の和:20873

約数の個数: 40

約数和(自身を含む): 278419680

約数和(自身を除く): 160338160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 20789, 41578, 83156, 103945, 166312, 207890, 332624, 415780, 831560, 1476019, 1663120, 2952038, 5904076, 7380095, 11808152, 14760190, 23616304, 29520380, 59040760, 118081520]

約数ペア:

[(1, 118081520), (2, 59040760), (4, 29520380), (5, 23616304), (8, 14760190), (10, 11808152), (16, 7380095), (20, 5904076), (40, 2952038), (71, 1663120), (80, 1476019), (142, 831560), (284, 415780), (355, 332624), (568, 207890), (710, 166312), (1136, 103945), (1420, 83156), (2840, 41578), (5680, 20789)]