20161156820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20572609}}^1$

素因数の和:20572632

約数の個数: 36

約数和(自身を含む): 49250828340

約数和(自身を除く): 29089671520

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20572609, 41145218, 82290436, 102863045, 144008263, 205726090, 288016526, 411452180, 576033052, 720041315, 1008057841, 1440082630, 2016115682, 2880165260, 4032231364, 5040289205, 10080578410, 20161156820]

約数ペア:

[(1, 20161156820), (2, 10080578410), (4, 5040289205), (5, 4032231364), (7, 2880165260), (10, 2016115682), (14, 1440082630), (20, 1008057841), (28, 720041315), (35, 576033052), (49, 411452180), (70, 288016526), (98, 205726090), (140, 144008263), (196, 102863045), (245, 82290436), (490, 41145218), (980, 20572609)]