19852806820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12891433}}^1$

素因数の和:12891460

約数の個数: 48

約数和(自身を含む): 51978261888

約数和(自身を除く): 32125455068

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12891433, 25782866, 51565732, 64457165, 90240031, 128914330, 141805763, 180480062, 257828660, 283611526, 360960124, 451200155, 567223052, 709028815, 902400310, 992640341, 1418057630, 1804800620, 1985280682, 2836115260, 3970561364, 4963201705, 9926403410, 19852806820]

約数ペア:

[(1, 19852806820), (2, 9926403410), (4, 4963201705), (5, 3970561364), (7, 2836115260), (10, 1985280682), (11, 1804800620), (14, 1418057630), (20, 992640341), (22, 902400310), (28, 709028815), (35, 567223052), (44, 451200155), (55, 360960124), (70, 283611526), (77, 257828660), (110, 180480062), (140, 141805763), (154, 128914330), (220, 90240031), (308, 64457165), (385, 51565732), (770, 25782866), (1540, 12891433)]