15560216

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 33600000

約数和(自身を除く): 18039784

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 1999, 3892, 3998, 7784, 7996, 13993, 15992, 27986, 55972, 111944, 277861, 555722, 1111444, 1945027, 2222888, 3890054, 7780108, 15560216]

約数ペア:

[(1, 15560216), (2, 7780108), (4, 3890054), (7, 2222888), (8, 1945027), (14, 1111444), (28, 555722), (56, 277861), (139, 111944), (278, 55972), (556, 27986), (973, 15992), (1112, 13993), (1946, 7996), (1999, 7784), (3892, 3998)]