13264040

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1487}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 29998080

約数和(自身を除く): 16734040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1487, 1784, 2230, 2974, 4460, 5948, 7435, 8920, 11896, 14870, 29740, 59480, 331601, 663202, 1326404, 1658005, 2652808, 3316010, 6632020, 13264040]

約数ペア:

[(1, 13264040), (2, 6632020), (4, 3316010), (5, 2652808), (8, 1658005), (10, 1326404), (20, 663202), (40, 331601), (223, 59480), (446, 29740), (892, 14870), (1115, 11896), (1487, 8920), (1784, 7435), (2230, 5948), (2974, 4460)]