7890540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18787}}^1$

素因数の和:18806

約数の個数: 48

約数和(自身を含む): 25251072

約数和(自身を除く): 17360532

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18787, 37574, 56361, 75148, 93935, 112722, 131509, 187870, 225444, 263018, 281805, 375740, 394527, 526036, 563610, 657545, 789054, 1127220, 1315090, 1578108, 1972635, 2630180, 3945270, 7890540]

約数ペア:

[(1, 7890540), (2, 3945270), (3, 2630180), (4, 1972635), (5, 1578108), (6, 1315090), (7, 1127220), (10, 789054), (12, 657545), (14, 563610), (15, 526036), (20, 394527), (21, 375740), (28, 281805), (30, 263018), (35, 225444), (42, 187870), (60, 131509), (70, 112722), (84, 93935), (105, 75148), (140, 56361), (210, 37574), (420, 18787)]