80721095

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{177409}}^1$

素因数の和:177434

約数の個数: 16

約数和(自身を含む): 119219520

約数和(自身を除く): 38498425

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 177409, 887045, 1241863, 2306317, 6209315, 11531585, 16144219, 80721095]

約数ペア:

[(1, 80721095), (5, 16144219), (7, 11531585), (13, 6209315), (35, 2306317), (65, 1241863), (91, 887045), (455, 177409)]