1997450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:471

約数の個数: 48

約数和(自身を含む): 4583040

約数和(自身を除く): 2585590

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 325, 350, 439, 455, 650, 878, 910, 2195, 2275, 3073, 4390, 4550, 5707, 6146, 10975, 11414, 15365, 21950, 28535, 30730, 39949, 57070, 76825, 79898, 142675, 153650, 199745, 285350, 399490, 998725, 1997450]

約数ペア:

[(1, 1997450), (2, 998725), (5, 399490), (7, 285350), (10, 199745), (13, 153650), (14, 142675), (25, 79898), (26, 76825), (35, 57070), (50, 39949), (65, 30730), (70, 28535), (91, 21950), (130, 15365), (175, 11414), (182, 10975), (325, 6146), (350, 5707), (439, 4550), (455, 4390), (650, 3073), (878, 2275), (910, 2195)]