28903760

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{823}}^1$

素因数の和:1275

約数の個数: 40

約数和(自身を含む): 67436160

約数和(自身を除く): 38532400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 823, 878, 1646, 1756, 2195, 3292, 3512, 4115, 4390, 6584, 7024, 8230, 8780, 13168, 16460, 17560, 32920, 35120, 65840, 361297, 722594, 1445188, 1806485, 2890376, 3612970, 5780752, 7225940, 14451880, 28903760]

約数ペア:

[(1, 28903760), (2, 14451880), (4, 7225940), (5, 5780752), (8, 3612970), (10, 2890376), (16, 1806485), (20, 1445188), (40, 722594), (80, 361297), (439, 65840), (823, 35120), (878, 32920), (1646, 17560), (1756, 16460), (2195, 13168), (3292, 8780), (3512, 8230), (4115, 7024), (4390, 6584)]