28111275

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1213}}^1$

素因数の和:1332

約数の個数: 36

約数和(自身を含む): 50881168

約数和(自身を除く): 22769893

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 1213, 1545, 2575, 3639, 4635, 6065, 7725, 10917, 18195, 23175, 30325, 54585, 90975, 124939, 272925, 374817, 624695, 1124451, 1874085, 3123475, 5622255, 9370425, 28111275]

約数ペア:

[(1, 28111275), (3, 9370425), (5, 5622255), (9, 3123475), (15, 1874085), (25, 1124451), (45, 624695), (75, 374817), (103, 272925), (225, 124939), (309, 90975), (515, 54585), (927, 30325), (1213, 23175), (1545, 18195), (2575, 10917), (3639, 7725), (4635, 6065)]