673280

素因数分解:

$2^9\times 5^1\times {\mathrm{263}}^1$

素因数の和:286

約数の個数: 40

約数和(自身を含む): 1620432

約数和(自身を除く): 947152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 263, 320, 512, 526, 640, 1052, 1280, 1315, 2104, 2560, 2630, 4208, 5260, 8416, 10520, 16832, 21040, 33664, 42080, 67328, 84160, 134656, 168320, 336640, 673280]

約数ペア:

[(1, 673280), (2, 336640), (4, 168320), (5, 134656), (8, 84160), (10, 67328), (16, 42080), (20, 33664), (32, 21040), (40, 16832), (64, 10520), (80, 8416), (128, 5260), (160, 4208), (256, 2630), (263, 2560), (320, 2104), (512, 1315), (526, 1280), (640, 1052)]