18769205

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 10188619

約数列:

[1, 5, 7, 13, 35, 49, 65, 71, 83, 91, 245, 355, 415, 455, 497, 581, 637, 923, 1079, 2485, 2905, 3185, 3479, 4067, 4615, 5395, 5893, 6461, 7553, 17395, 20335, 29465, 32305, 37765, 41251, 45227, 52871, 76609, 206255, 226135, 264355, 288757, 383045, 536263, 1443785, 2681315, 3753841, 18769205]

約数ペア:

[(1, 18769205), (5, 3753841), (7, 2681315), (13, 1443785), (35, 536263), (49, 383045), (65, 288757), (71, 264355), (83, 226135), (91, 206255), (245, 76609), (355, 52871), (415, 45227), (455, 41251), (497, 37765), (581, 32305), (637, 29465), (923, 20335), (1079, 17395), (2485, 7553), (2905, 6461), (3185, 5893), (3479, 5395), (4067, 4615)]