1696040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 3861000

約数和(自身を除く): 2164960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 389, 436, 545, 778, 872, 1090, 1556, 1945, 2180, 3112, 3890, 4360, 7780, 15560, 42401, 84802, 169604, 212005, 339208, 424010, 848020, 1696040]

約数ペア:

[(1, 1696040), (2, 848020), (4, 424010), (5, 339208), (8, 212005), (10, 169604), (20, 84802), (40, 42401), (109, 15560), (218, 7780), (389, 4360), (436, 3890), (545, 3112), (778, 2180), (872, 1945), (1090, 1556)]