7890680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{28181}}^1$

素因数の和:28199

約数の個数: 32

約数和(自身を含む): 20291040

約数和(自身を除く): 12400360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 28181, 56362, 112724, 140905, 197267, 225448, 281810, 394534, 563620, 789068, 986335, 1127240, 1578136, 1972670, 3945340, 7890680]

約数ペア:

[(1, 7890680), (2, 3945340), (4, 1972670), (5, 1578136), (7, 1127240), (8, 986335), (10, 789068), (14, 563620), (20, 394534), (28, 281810), (35, 225448), (40, 197267), (56, 140905), (70, 112724), (140, 56362), (280, 28181)]