28343140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{457}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 68326272

約数和(自身を除く): 39983132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 457, 886, 914, 1772, 1828, 2215, 2285, 3101, 3199, 4430, 4570, 6202, 6398, 8860, 9140, 12404, 12796, 15505, 15995, 31010, 31990, 62020, 63980, 202451, 404902, 809804, 1012255, 1417157, 2024510, 2834314, 4049020, 5668628, 7085785, 14171570, 28343140]

約数ペア:

[(1, 28343140), (2, 14171570), (4, 7085785), (5, 5668628), (7, 4049020), (10, 2834314), (14, 2024510), (20, 1417157), (28, 1012255), (35, 809804), (70, 404902), (140, 202451), (443, 63980), (457, 62020), (886, 31990), (914, 31010), (1772, 15995), (1828, 15505), (2215, 12796), (2285, 12404), (3101, 9140), (3199, 8860), (4430, 6398), (4570, 6202)]