157651220

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{40013}}^1$

素因数の和:40219

約数の個数: 24

約数和(自身を含む): 332756424

約数和(自身を除く): 175105204

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 40013, 80026, 160052, 200065, 400130, 800260, 7882561, 15765122, 31530244, 39412805, 78825610, 157651220]

約数ペア:

[(1, 157651220), (2, 78825610), (4, 39412805), (5, 31530244), (10, 15765122), (20, 7882561), (197, 800260), (394, 400130), (788, 200065), (985, 160052), (1970, 80026), (3940, 40013)]