28149380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3001}}^1$

素因数の和:3084

約数の個数: 48

約数和(自身を含む): 68589696

約数和(自身を除く): 40440316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 3001, 4690, 6002, 9380, 12004, 15005, 21007, 30010, 42014, 60020, 84028, 105035, 201067, 210070, 402134, 420140, 804268, 1005335, 1407469, 2010670, 2814938, 4021340, 5629876, 7037345, 14074690, 28149380]

約数ペア:

[(1, 28149380), (2, 14074690), (4, 7037345), (5, 5629876), (7, 4021340), (10, 2814938), (14, 2010670), (20, 1407469), (28, 1005335), (35, 804268), (67, 420140), (70, 402134), (134, 210070), (140, 201067), (268, 105035), (335, 84028), (469, 60020), (670, 42014), (938, 30010), (1340, 21007), (1876, 15005), (2345, 12004), (3001, 9380), (4690, 6002)]