49290040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28657}}^1$

素因数の和:28711

約数の個数: 32

約数和(自身を含む): 113485680

約数和(自身を除く): 64195640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 28657, 57314, 114628, 143285, 229256, 286570, 573140, 1146280, 1232251, 2464502, 4929004, 6161255, 9858008, 12322510, 24645020, 49290040]

約数ペア:

[(1, 49290040), (2, 24645020), (4, 12322510), (5, 9858008), (8, 6161255), (10, 4929004), (20, 2464502), (40, 1232251), (43, 1146280), (86, 573140), (172, 286570), (215, 229256), (344, 143285), (430, 114628), (860, 57314), (1720, 28657)]