1914040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 4356000

約数和(自身を除く): 2441960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 439, 545, 872, 878, 1090, 1756, 2180, 2195, 3512, 4360, 4390, 8780, 17560, 47851, 95702, 191404, 239255, 382808, 478510, 957020, 1914040]

約数ペア:

[(1, 1914040), (2, 957020), (4, 478510), (5, 382808), (8, 239255), (10, 191404), (20, 95702), (40, 47851), (109, 17560), (218, 8780), (436, 4390), (439, 4360), (545, 3512), (872, 2195), (878, 2180), (1090, 1756)]