399490

素因数分解:

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

素因数の和:466

約数の個数: 32

約数和(自身を含む): 887040

約数和(自身を除く): 487550

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 439, 455, 878, 910, 2195, 3073, 4390, 5707, 6146, 11414, 15365, 28535, 30730, 39949, 57070, 79898, 199745, 399490]

約数ペア:

[(1, 399490), (2, 199745), (5, 79898), (7, 57070), (10, 39949), (13, 30730), (14, 28535), (26, 15365), (35, 11414), (65, 6146), (70, 5707), (91, 4390), (130, 3073), (182, 2195), (439, 910), (455, 878)]