28678740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1109}}^1$

素因数の和:1552

約数の個数: 48

約数和(自身を含む): 80559360

約数和(自身を除く): 51880620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 862, 1109, 1293, 1724, 2155, 2218, 2586, 3327, 4310, 4436, 5172, 5545, 6465, 6654, 8620, 11090, 12930, 13308, 16635, 22180, 25860, 33270, 66540, 477979, 955958, 1433937, 1911916, 2389895, 2867874, 4779790, 5735748, 7169685, 9559580, 14339370, 28678740]

約数ペア:

[(1, 28678740), (2, 14339370), (3, 9559580), (4, 7169685), (5, 5735748), (6, 4779790), (10, 2867874), (12, 2389895), (15, 1911916), (20, 1433937), (30, 955958), (60, 477979), (431, 66540), (862, 33270), (1109, 25860), (1293, 22180), (1724, 16635), (2155, 13308), (2218, 12930), (2586, 11090), (3327, 8620), (4310, 6654), (4436, 6465), (5172, 5545)]