28121220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{156229}}^1$

素因数の和:156244

約数の個数: 36

約数和(自身を含む): 85301580

約数和(自身を除く): 57180360

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 156229, 312458, 468687, 624916, 781145, 937374, 1406061, 1562290, 1874748, 2343435, 2812122, 3124580, 4686870, 5624244, 7030305, 9373740, 14060610, 28121220]

約数ペア:

[(1, 28121220), (2, 14060610), (3, 9373740), (4, 7030305), (5, 5624244), (6, 4686870), (9, 3124580), (10, 2812122), (12, 2343435), (15, 1874748), (18, 1562290), (20, 1406061), (30, 937374), (36, 781145), (45, 624916), (60, 468687), (90, 312458), (180, 156229)]