28978670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{413981}}^1$

素因数の和:413995

約数の個数: 16

約数和(自身を含む): 59613408

約数和(自身を除く): 30634738

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 413981, 827962, 2069905, 2897867, 4139810, 5795734, 14489335, 28978670]

約数ペア:

[(1, 28978670), (2, 14489335), (5, 5795734), (7, 4139810), (10, 2897867), (14, 2069905), (35, 827962), (70, 413981)]