2054166040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{471139}}^1$

素因数の和:471259

約数の個数: 32

約数和(自身を含む): 4664286000

約数和(自身を除く): 2610119960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 471139, 942278, 1884556, 2355695, 3769112, 4711390, 9422780, 18845560, 51354151, 102708302, 205416604, 256770755, 410833208, 513541510, 1027083020, 2054166040]

約数ペア:

[(1, 2054166040), (2, 1027083020), (4, 513541510), (5, 410833208), (8, 256770755), (10, 205416604), (20, 102708302), (40, 51354151), (109, 18845560), (218, 9422780), (436, 4711390), (545, 3769112), (872, 2355695), (1090, 1884556), (2180, 942278), (4360, 471139)]