28290780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22453}}^1$

素因数の和:22475

約数の個数: 72

約数和(自身を含む): 98079072

約数和(自身を除く): 69788292

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 22453, 44906, 67359, 89812, 112265, 134718, 157171, 202077, 224530, 269436, 314342, 336795, 404154, 449060, 471513, 628684, 673590, 785855, 808308, 943026, 1010385, 1347180, 1414539, 1571710, 1886052, 2020770, 2357565, 2829078, 3143420, 4041540, 4715130, 5658156, 7072695, 9430260, 14145390, 28290780]

約数ペア:

[(1, 28290780), (2, 14145390), (3, 9430260), (4, 7072695), (5, 5658156), (6, 4715130), (7, 4041540), (9, 3143420), (10, 2829078), (12, 2357565), (14, 2020770), (15, 1886052), (18, 1571710), (20, 1414539), (21, 1347180), (28, 1010385), (30, 943026), (35, 808308), (36, 785855), (42, 673590), (45, 628684), (60, 471513), (63, 449060), (70, 404154), (84, 336795), (90, 314342), (105, 269436), (126, 224530), (140, 202077), (180, 157171), (210, 134718), (252, 112265), (315, 89812), (420, 67359), (630, 44906), (1260, 22453)]