128218685

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 181440000

約数和(自身を除く): 53221315

約数列:

[1, 5, 7, 35, 41, 199, 205, 287, 449, 995, 1393, 1435, 2245, 3143, 6965, 8159, 15715, 18409, 40795, 57113, 89351, 92045, 128863, 285565, 446755, 625457, 644315, 3127285, 3663391, 18316955, 25643737, 128218685]

約数ペア:

[(1, 128218685), (5, 25643737), (7, 18316955), (35, 3663391), (41, 3127285), (199, 644315), (205, 625457), (287, 446755), (449, 285565), (995, 128863), (1393, 92045), (1435, 89351), (2245, 57113), (3143, 40795), (6965, 18409), (8159, 15715)]