206777680

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{8311}}^1$

素因数の和:8635

約数の個数: 40

約数和(自身を含む): 482361984

約数和(自身を除く): 275584304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 2488, 3110, 4976, 6220, 8311, 12440, 16622, 24880, 33244, 41555, 66488, 83110, 132976, 166220, 332440, 664880, 2584721, 5169442, 10338884, 12923605, 20677768, 25847210, 41355536, 51694420, 103388840, 206777680]

約数ペア:

[(1, 206777680), (2, 103388840), (4, 51694420), (5, 41355536), (8, 25847210), (10, 20677768), (16, 12923605), (20, 10338884), (40, 5169442), (80, 2584721), (311, 664880), (622, 332440), (1244, 166220), (1555, 132976), (2488, 83110), (3110, 66488), (4976, 41555), (6220, 33244), (8311, 24880), (12440, 16622)]