19650260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1447}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 47679744

約数和(自身を除く): 28029484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1447, 1940, 2716, 2894, 3395, 5788, 6790, 7235, 10129, 13580, 14470, 20258, 28940, 40516, 50645, 101290, 140359, 202580, 280718, 561436, 701795, 982513, 1403590, 1965026, 2807180, 3930052, 4912565, 9825130, 19650260]

約数ペア:

[(1, 19650260), (2, 9825130), (4, 4912565), (5, 3930052), (7, 2807180), (10, 1965026), (14, 1403590), (20, 982513), (28, 701795), (35, 561436), (70, 280718), (97, 202580), (140, 140359), (194, 101290), (388, 50645), (485, 40516), (679, 28940), (970, 20258), (1358, 14470), (1447, 13580), (1940, 10129), (2716, 7235), (2894, 6790), (3395, 5788)]