1555120120

素因数分解:

$2^3\times 5^1\times {\mathrm{38878003}}^1$

素因数の和:38878014

約数の個数: 16

約数和(自身を含む): 3499020360

約数和(自身を除く): 1943900240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 38878003, 77756006, 155512012, 194390015, 311024024, 388780030, 777560060, 1555120120]

約数ペア:

[(1, 1555120120), (2, 777560060), (4, 388780030), (5, 311024024), (8, 194390015), (10, 155512012), (20, 77756006), (40, 38878003)]