1225340

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 2594592

約数和(自身を除く): 1369252

約数列:

[1, 2, 4, 5, 10, 20, 197, 311, 394, 622, 788, 985, 1244, 1555, 1970, 3110, 3940, 6220, 61267, 122534, 245068, 306335, 612670, 1225340]

約数ペア:

[(1, 1225340), (2, 612670), (4, 306335), (5, 245068), (10, 122534), (20, 61267), (197, 6220), (311, 3940), (394, 3110), (622, 1970), (788, 1555), (985, 1244)]