28131005

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47279}}^1$

素因数の和:47308

約数の個数: 16

約数和(自身を含む): 40849920

約数和(自身を除く): 12718915

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 47279, 236395, 330953, 803743, 1654765, 4018715, 5626201, 28131005]

約数ペア:

[(1, 28131005), (5, 5626201), (7, 4018715), (17, 1654765), (35, 803743), (85, 330953), (119, 236395), (595, 47279)]