82166800

素因数分解:

$2^4\times 5^2\times {\mathrm{205417}}^1$

素因数の和:205435

約数の個数: 30

約数和(自身を含む): 197406698

約数和(自身を除く): 115239898

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 205417, 410834, 821668, 1027085, 1643336, 2054170, 3286672, 4108340, 5135425, 8216680, 10270850, 16433360, 20541700, 41083400, 82166800]

約数ペア:

[(1, 82166800), (2, 41083400), (4, 20541700), (5, 16433360), (8, 10270850), (10, 8216680), (16, 5135425), (20, 4108340), (25, 3286672), (40, 2054170), (50, 1643336), (80, 1027085), (100, 821668), (200, 410834), (400, 205417)]