20306384

素因数分解:

$2^4\times 7^2\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 60

約数和(自身を含む): 46648800

約数和(自身を除く): 26342416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 59, 98, 112, 118, 196, 236, 392, 413, 439, 472, 784, 826, 878, 944, 1652, 1756, 2891, 3073, 3304, 3512, 5782, 6146, 6608, 7024, 11564, 12292, 21511, 23128, 24584, 25901, 43022, 46256, 49168, 51802, 86044, 103604, 172088, 181307, 207208, 344176, 362614, 414416, 725228, 1269149, 1450456, 2538298, 2900912, 5076596, 10153192, 20306384]

約数ペア:

[(1, 20306384), (2, 10153192), (4, 5076596), (7, 2900912), (8, 2538298), (14, 1450456), (16, 1269149), (28, 725228), (49, 414416), (56, 362614), (59, 344176), (98, 207208), (112, 181307), (118, 172088), (196, 103604), (236, 86044), (392, 51802), (413, 49168), (439, 46256), (472, 43022), (784, 25901), (826, 24584), (878, 23128), (944, 21511), (1652, 12292), (1756, 11564), (2891, 7024), (3073, 6608), (3304, 6146), (3512, 5782)]