28349580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67499}}^1$

素因数の和:67518

約数の個数: 48

約数和(自身を含む): 90720000

約数和(自身を除く): 62370420

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67499, 134998, 202497, 269996, 337495, 404994, 472493, 674990, 809988, 944986, 1012485, 1349980, 1417479, 1889972, 2024970, 2362465, 2834958, 4049940, 4724930, 5669916, 7087395, 9449860, 14174790, 28349580]

約数ペア:

[(1, 28349580), (2, 14174790), (3, 9449860), (4, 7087395), (5, 5669916), (6, 4724930), (7, 4049940), (10, 2834958), (12, 2362465), (14, 2024970), (15, 1889972), (20, 1417479), (21, 1349980), (28, 1012485), (30, 944986), (35, 809988), (42, 674990), (60, 472493), (70, 404994), (84, 337495), (105, 269996), (140, 202497), (210, 134998), (420, 67499)]