42496840

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5393}}^1$

素因数の和:5601

約数の個数: 32

約数和(自身を含む): 96121080

約数和(自身を除く): 53624240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5393, 7880, 10786, 21572, 26965, 43144, 53930, 107860, 215720, 1062421, 2124842, 4249684, 5312105, 8499368, 10624210, 21248420, 42496840]

約数ペア:

[(1, 42496840), (2, 21248420), (4, 10624210), (5, 8499368), (8, 5312105), (10, 4249684), (20, 2124842), (40, 1062421), (197, 215720), (394, 107860), (788, 53930), (985, 43144), (1576, 26965), (1970, 21572), (3940, 10786), (5393, 7880)]