38721980

素因数分解:

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

素因数の和:195

約数の個数: 96

約数和(自身を含む): 93768192

約数和(自身を除く): 55046212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 67, 71, 74, 110, 134, 142, 148, 185, 220, 268, 284, 335, 355, 370, 407, 670, 710, 737, 740, 781, 814, 1340, 1420, 1474, 1562, 1628, 2035, 2479, 2627, 2948, 3124, 3685, 3905, 4070, 4757, 4958, 5254, 7370, 7810, 8140, 9514, 9916, 10508, 12395, 13135, 14740, 15620, 19028, 23785, 24790, 26270, 27269, 28897, 47570, 49580, 52327, 52540, 54538, 57794, 95140, 104654, 109076, 115588, 136345, 144485, 176009, 209308, 261635, 272690, 288970, 352018, 523270, 545380, 577940, 704036, 880045, 1046540, 1760090, 1936099, 3520180, 3872198, 7744396, 9680495, 19360990, 38721980]

約数ペア:

[(1, 38721980), (2, 19360990), (4, 9680495), (5, 7744396), (10, 3872198), (11, 3520180), (20, 1936099), (22, 1760090), (37, 1046540), (44, 880045), (55, 704036), (67, 577940), (71, 545380), (74, 523270), (110, 352018), (134, 288970), (142, 272690), (148, 261635), (185, 209308), (220, 176009), (268, 144485), (284, 136345), (335, 115588), (355, 109076), (370, 104654), (407, 95140), (670, 57794), (710, 54538), (737, 52540), (740, 52327), (781, 49580), (814, 47570), (1340, 28897), (1420, 27269), (1474, 26270), (1562, 24790), (1628, 23785), (2035, 19028), (2479, 15620), (2627, 14740), (2948, 13135), (3124, 12395), (3685, 10508), (3905, 9916), (4070, 9514), (4757, 8140), (4958, 7810), (5254, 7370)]