28408135

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{42719}}^1$

素因数の和:42750

約数の個数: 16

約数和(自身を含む): 41011200

約数和(自身を除く): 12603065

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 42719, 213595, 299033, 811661, 1495165, 4058305, 5681627, 28408135]

約数ペア:

[(1, 28408135), (5, 5681627), (7, 4058305), (19, 1495165), (35, 811661), (95, 299033), (133, 213595), (665, 42719)]