28378070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{405401}}^1$

素因数の和:405415

約数の個数: 16

約数和(自身を含む): 58377888

約数和(自身を除く): 29999818

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 405401, 810802, 2027005, 2837807, 4054010, 5675614, 14189035, 28378070]

約数ペア:

[(1, 28378070), (2, 14189035), (5, 5675614), (7, 4054010), (10, 2837807), (14, 2027005), (35, 810802), (70, 405401)]