336640

素因数分解:

$2^8\times 5^1\times {\mathrm{263}}^1$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 809424

約数和(自身を除く): 472784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 263, 320, 526, 640, 1052, 1280, 1315, 2104, 2630, 4208, 5260, 8416, 10520, 16832, 21040, 33664, 42080, 67328, 84160, 168320, 336640]

約数ペア:

[(1, 336640), (2, 168320), (4, 84160), (5, 67328), (8, 42080), (10, 33664), (16, 21040), (20, 16832), (32, 10520), (40, 8416), (64, 5260), (80, 4208), (128, 2630), (160, 2104), (256, 1315), (263, 1280), (320, 1052), (526, 640)]