20771600

素因数分解:

$2^4\times 5^2\times {\mathrm{51929}}^1$

素因数の和:51947

約数の個数: 30

約数和(自身を含む): 49904730

約数和(自身を除く): 29133130

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51929, 103858, 207716, 259645, 415432, 519290, 830864, 1038580, 1298225, 2077160, 2596450, 4154320, 5192900, 10385800, 20771600]

約数ペア:

[(1, 20771600), (2, 10385800), (4, 5192900), (5, 4154320), (8, 2596450), (10, 2077160), (16, 1298225), (20, 1038580), (25, 830864), (40, 519290), (50, 415432), (80, 259645), (100, 207716), (200, 103858), (400, 51929)]