7940420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4093}}^1$

素因数の和:4199

約数の個数: 24

約数和(自身を含む): 16850904

約数和(自身を除く): 8910484

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 4093, 8186, 16372, 20465, 40930, 81860, 397021, 794042, 1588084, 1985105, 3970210, 7940420]

約数ペア:

[(1, 7940420), (2, 3970210), (4, 1985105), (5, 1588084), (10, 794042), (20, 397021), (97, 81860), (194, 40930), (388, 20465), (485, 16372), (970, 8186), (1940, 4093)]