128051105

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281431}}^1$

素因数の和:281456

約数の個数: 16

約数和(自身を含む): 189122304

約数和(自身を除く): 61071199

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 281431, 1407155, 1970017, 3658603, 9850085, 18293015, 25610221, 128051105]

約数ペア:

[(1, 128051105), (5, 25610221), (7, 18293015), (13, 9850085), (35, 3658603), (65, 1970017), (91, 1407155), (455, 281431)]