201366280

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{16187}}^1$

素因数の和:16509

約数の個数: 32

約数和(自身を含む): 454559040

約数和(自身を除く): 253192760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 6220, 12440, 16187, 32374, 64748, 80935, 129496, 161870, 323740, 647480, 5034157, 10068314, 20136628, 25170785, 40273256, 50341570, 100683140, 201366280]

約数ペア:

[(1, 201366280), (2, 100683140), (4, 50341570), (5, 40273256), (8, 25170785), (10, 20136628), (20, 10068314), (40, 5034157), (311, 647480), (622, 323740), (1244, 161870), (1555, 129496), (2488, 80935), (3110, 64748), (6220, 32374), (12440, 16187)]