19362040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11257}}^1$

素因数の和:11311

約数の個数: 32

約数和(自身を含む): 44581680

約数和(自身を除く): 25219640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11257, 22514, 45028, 56285, 90056, 112570, 225140, 450280, 484051, 968102, 1936204, 2420255, 3872408, 4840510, 9681020, 19362040]

約数ペア:

[(1, 19362040), (2, 9681020), (4, 4840510), (5, 3872408), (8, 2420255), (10, 1936204), (20, 968102), (40, 484051), (43, 450280), (86, 225140), (172, 112570), (215, 90056), (344, 56285), (430, 45028), (860, 22514), (1720, 11257)]