81520335

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 152993568

約数和(自身を除く): 71473233

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 331, 421, 585, 993, 1263, 1655, 2105, 2979, 3789, 4303, 4965, 5473, 6315, 12909, 14895, 16419, 18945, 21515, 27365, 38727, 49257, 64545, 82095, 139351, 193635, 246285, 418053, 696755, 1254159, 1811563, 2090265, 5434689, 6270795, 9057815, 16304067, 27173445, 81520335]

約数ペア:

[(1, 81520335), (3, 27173445), (5, 16304067), (9, 9057815), (13, 6270795), (15, 5434689), (39, 2090265), (45, 1811563), (65, 1254159), (117, 696755), (195, 418053), (331, 246285), (421, 193635), (585, 139351), (993, 82095), (1263, 64545), (1655, 49257), (2105, 38727), (2979, 27365), (3789, 21515), (4303, 18945), (4965, 16419), (5473, 14895), (6315, 12909)]