20161842820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20573309}}^1$

素因数の和:20573332

約数の個数: 36

約数和(自身を含む): 49252504140

約数和(自身を除く): 29090661320

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20573309, 41146618, 82293236, 102866545, 144013163, 205733090, 288026326, 411466180, 576052652, 720065815, 1008092141, 1440131630, 2016184282, 2880263260, 4032368564, 5040460705, 10080921410, 20161842820]

約数ペア:

[(1, 20161842820), (2, 10080921410), (4, 5040460705), (5, 4032368564), (7, 2880263260), (10, 2016184282), (14, 1440131630), (20, 1008092141), (28, 720065815), (35, 576052652), (49, 411466180), (70, 288026326), (98, 205733090), (140, 144013163), (196, 102866545), (245, 82293236), (490, 41146618), (980, 20573309)]