18140680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3571}}^1$

素因数の和:3709

約数の個数: 32

約数和(自身を含む): 41149440

約数和(自身を除く): 23008760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3571, 5080, 7142, 14284, 17855, 28568, 35710, 71420, 142840, 453517, 907034, 1814068, 2267585, 3628136, 4535170, 9070340, 18140680]

約数ペア:

[(1, 18140680), (2, 9070340), (4, 4535170), (5, 3628136), (8, 2267585), (10, 1814068), (20, 907034), (40, 453517), (127, 142840), (254, 71420), (508, 35710), (635, 28568), (1016, 17855), (1270, 14284), (2540, 7142), (3571, 5080)]