18720781980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{312013033}}^1$

素因数の和:312013045

約数の個数: 24

約数和(自身を含む): 52418189712

約数和(自身を除く): 33697407732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 312013033, 624026066, 936039099, 1248052132, 1560065165, 1872078198, 3120130330, 3744156396, 4680195495, 6240260660, 9360390990, 18720781980]

約数ペア:

[(1, 18720781980), (2, 9360390990), (3, 6240260660), (4, 4680195495), (5, 3744156396), (6, 3120130330), (10, 1872078198), (12, 1560065165), (15, 1248052132), (20, 936039099), (30, 624026066), (60, 312013033)]