7780108

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 15680000

約数和(自身を除く): 7899892

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 1999, 3892, 3998, 7996, 13993, 27986, 55972, 277861, 555722, 1111444, 1945027, 3890054, 7780108]

約数ペア:

[(1, 7780108), (2, 3890054), (4, 1945027), (7, 1111444), (14, 555722), (28, 277861), (139, 55972), (278, 27986), (556, 13993), (973, 7996), (1946, 3998), (1999, 3892)]