201681280

素因数分解:

$2^7\times 5^1\times {\mathrm{315127}}^1$

素因数の和:315146

約数の個数: 32

約数和(自身を含む): 482145840

約数和(自身を除く): 280464560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 315127, 630254, 1260508, 1575635, 2521016, 3151270, 5042032, 6302540, 10084064, 12605080, 20168128, 25210160, 40336256, 50420320, 100840640, 201681280]

約数ペア:

[(1, 201681280), (2, 100840640), (4, 50420320), (5, 40336256), (8, 25210160), (10, 20168128), (16, 12605080), (20, 10084064), (32, 6302540), (40, 5042032), (64, 3151270), (80, 2521016), (128, 1575635), (160, 1260508), (320, 630254), (640, 315127)]