28692280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1987}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 68168520

約数和(自身を除く): 39476240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 1987, 2888, 3610, 3974, 7220, 7948, 9935, 14440, 15896, 19870, 37753, 39740, 75506, 79480, 151012, 188765, 302024, 377530, 717307, 755060, 1434614, 1510120, 2869228, 3586535, 5738456, 7173070, 14346140, 28692280]

約数ペア:

[(1, 28692280), (2, 14346140), (4, 7173070), (5, 5738456), (8, 3586535), (10, 2869228), (19, 1510120), (20, 1434614), (38, 755060), (40, 717307), (76, 377530), (95, 302024), (152, 188765), (190, 151012), (361, 79480), (380, 75506), (722, 39740), (760, 37753), (1444, 19870), (1805, 15896), (1987, 14440), (2888, 9935), (3610, 7948), (3974, 7220)]