7940205

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 17303832

約数和(自身を除く): 9363627

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 49, 63, 65, 91, 105, 117, 147, 195, 245, 273, 277, 315, 441, 455, 585, 637, 735, 819, 831, 1365, 1385, 1911, 1939, 2205, 2493, 3185, 3601, 4095, 4155, 5733, 5817, 9555, 9695, 10803, 12465, 13573, 17451, 18005, 25207, 28665, 29085, 32409, 40719, 54015, 67865, 75621, 87255, 122157, 126035, 162045, 176449, 203595, 226863, 378105, 529347, 610785, 882245, 1134315, 1588041, 2646735, 7940205]

約数ペア:

[(1, 7940205), (3, 2646735), (5, 1588041), (7, 1134315), (9, 882245), (13, 610785), (15, 529347), (21, 378105), (35, 226863), (39, 203595), (45, 176449), (49, 162045), (63, 126035), (65, 122157), (91, 87255), (105, 75621), (117, 67865), (147, 54015), (195, 40719), (245, 32409), (273, 29085), (277, 28665), (315, 25207), (441, 18005), (455, 17451), (585, 13573), (637, 12465), (735, 10803), (819, 9695), (831, 9555), (1365, 5817), (1385, 5733), (1911, 4155), (1939, 4095), (2205, 3601), (2493, 3185)]