28137655

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 43006464

約数和(自身を除く): 14868809

約数列:

[1, 5, 7, 13, 35, 65, 67, 71, 91, 169, 335, 355, 455, 469, 497, 845, 871, 923, 1183, 2345, 2485, 4355, 4615, 4757, 5915, 6097, 6461, 11323, 11999, 23785, 30485, 32305, 33299, 56615, 59995, 61841, 79261, 83993, 166495, 309205, 396305, 419965, 432887, 803933, 2164435, 4019665, 5627531, 28137655]

約数ペア:

[(1, 28137655), (5, 5627531), (7, 4019665), (13, 2164435), (35, 803933), (65, 432887), (67, 419965), (71, 396305), (91, 309205), (169, 166495), (335, 83993), (355, 79261), (455, 61841), (469, 59995), (497, 56615), (845, 33299), (871, 32305), (923, 30485), (1183, 23785), (2345, 11999), (2485, 11323), (4355, 6461), (4615, 6097), (4757, 5915)]