208640

素因数分解:

$2^8\times 5^1\times {\mathrm{163}}^1$

素因数の和:184

約数の個数: 36

約数和(自身を含む): 502824

約数和(自身を除く): 294184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 256, 320, 326, 640, 652, 815, 1280, 1304, 1630, 2608, 3260, 5216, 6520, 10432, 13040, 20864, 26080, 41728, 52160, 104320, 208640]

約数ペア:

[(1, 208640), (2, 104320), (4, 52160), (5, 41728), (8, 26080), (10, 20864), (16, 13040), (20, 10432), (32, 6520), (40, 5216), (64, 3260), (80, 2608), (128, 1630), (160, 1304), (163, 1280), (256, 815), (320, 652), (326, 640)]