20045228

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{919}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 43276800

約数和(自身を除く): 23231572

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 41, 76, 82, 133, 164, 266, 287, 532, 574, 779, 919, 1148, 1558, 1838, 3116, 3676, 5453, 6433, 10906, 12866, 17461, 21812, 25732, 34922, 37679, 69844, 75358, 122227, 150716, 244454, 263753, 488908, 527506, 715901, 1055012, 1431802, 2863604, 5011307, 10022614, 20045228]

約数ペア:

[(1, 20045228), (2, 10022614), (4, 5011307), (7, 2863604), (14, 1431802), (19, 1055012), (28, 715901), (38, 527506), (41, 488908), (76, 263753), (82, 244454), (133, 150716), (164, 122227), (266, 75358), (287, 69844), (532, 37679), (574, 34922), (779, 25732), (919, 21812), (1148, 17461), (1558, 12866), (1838, 10906), (3116, 6433), (3676, 5453)]