19360990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 40186368

約数和(自身を除く): 20825378

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 67, 71, 74, 110, 134, 142, 185, 335, 355, 370, 407, 670, 710, 737, 781, 814, 1474, 1562, 2035, 2479, 2627, 3685, 3905, 4070, 4757, 4958, 5254, 7370, 7810, 9514, 12395, 13135, 23785, 24790, 26270, 27269, 28897, 47570, 52327, 54538, 57794, 104654, 136345, 144485, 176009, 261635, 272690, 288970, 352018, 523270, 880045, 1760090, 1936099, 3872198, 9680495, 19360990]

約数ペア:

[(1, 19360990), (2, 9680495), (5, 3872198), (10, 1936099), (11, 1760090), (22, 880045), (37, 523270), (55, 352018), (67, 288970), (71, 272690), (74, 261635), (110, 176009), (134, 144485), (142, 136345), (185, 104654), (335, 57794), (355, 54538), (370, 52327), (407, 47570), (670, 28897), (710, 27269), (737, 26270), (781, 24790), (814, 23785), (1474, 13135), (1562, 12395), (2035, 9514), (2479, 7810), (2627, 7370), (3685, 5254), (3905, 4958), (4070, 4757)]