208025720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{742949}}^1$

素因数の和:742967

約数の個数: 32

約数和(自身を含む): 534924000

約数和(自身を除く): 326898280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 742949, 1485898, 2971796, 3714745, 5200643, 5943592, 7429490, 10401286, 14858980, 20802572, 26003215, 29717960, 41605144, 52006430, 104012860, 208025720]

約数ペア:

[(1, 208025720), (2, 104012860), (4, 52006430), (5, 41605144), (7, 29717960), (8, 26003215), (10, 20802572), (14, 14858980), (20, 10401286), (28, 7429490), (35, 5943592), (40, 5200643), (56, 3714745), (70, 2971796), (140, 1485898), (280, 742949)]