31120432

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2153

約数の個数: 40

約数和(自身を含む): 69440000

約数和(自身を除く): 38319568

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1946, 1999, 2224, 3892, 3998, 7784, 7996, 13993, 15568, 15992, 27986, 31984, 55972, 111944, 223888, 277861, 555722, 1111444, 1945027, 2222888, 3890054, 4445776, 7780108, 15560216, 31120432]

約数ペア:

[(1, 31120432), (2, 15560216), (4, 7780108), (7, 4445776), (8, 3890054), (14, 2222888), (16, 1945027), (28, 1111444), (56, 555722), (112, 277861), (139, 223888), (278, 111944), (556, 55972), (973, 31984), (1112, 27986), (1946, 15992), (1999, 15568), (2224, 13993), (3892, 7996), (3998, 7784)]