417280

素因数分解:

$2^9\times 5^1\times {\mathrm{163}}^1$

素因数の和:186

約数の個数: 40

約数和(自身を含む): 1006632

約数和(自身を除く): 589352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 163, 256, 320, 326, 512, 640, 652, 815, 1280, 1304, 1630, 2560, 2608, 3260, 5216, 6520, 10432, 13040, 20864, 26080, 41728, 52160, 83456, 104320, 208640, 417280]

約数ペア:

[(1, 417280), (2, 208640), (4, 104320), (5, 83456), (8, 52160), (10, 41728), (16, 26080), (20, 20864), (32, 13040), (40, 10432), (64, 6520), (80, 5216), (128, 3260), (160, 2608), (163, 2560), (256, 1630), (320, 1304), (326, 1280), (512, 815), (640, 652)]