890680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3181}}^1$

素因数の和:3199

約数の個数: 32

約数和(自身を含む): 2291040

約数和(自身を除く): 1400360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3181, 6362, 12724, 15905, 22267, 25448, 31810, 44534, 63620, 89068, 111335, 127240, 178136, 222670, 445340, 890680]

約数ペア:

[(1, 890680), (2, 445340), (4, 222670), (5, 178136), (7, 127240), (8, 111335), (10, 89068), (14, 63620), (20, 44534), (28, 31810), (35, 25448), (40, 22267), (56, 15905), (70, 12724), (140, 6362), (280, 3181)]