287291205

素因数分解:

$3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:288

約数の個数: 80

約数和(自身を含む): 532756224

約数和(自身を除く): 245465019

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 81, 97, 103, 135, 213, 291, 309, 355, 405, 485, 515, 639, 873, 927, 1065, 1455, 1545, 1917, 2619, 2781, 3195, 4365, 4635, 5751, 6887, 7313, 7857, 8343, 9585, 9991, 13095, 13905, 20661, 21939, 28755, 29973, 34435, 36565, 39285, 41715, 49955, 61983, 65817, 89919, 103305, 109695, 149865, 185949, 197451, 269757, 309915, 329085, 449595, 557847, 592353, 709361, 809271, 929745, 987255, 1348785, 2128083, 2789235, 2961765, 3546805, 4046355, 6384249, 10640415, 19152747, 31921245, 57458241, 95763735, 287291205]

約数ペア:

[(1, 287291205), (3, 95763735), (5, 57458241), (9, 31921245), (15, 19152747), (27, 10640415), (45, 6384249), (71, 4046355), (81, 3546805), (97, 2961765), (103, 2789235), (135, 2128083), (213, 1348785), (291, 987255), (309, 929745), (355, 809271), (405, 709361), (485, 592353), (515, 557847), (639, 449595), (873, 329085), (927, 309915), (1065, 269757), (1455, 197451), (1545, 185949), (1917, 149865), (2619, 109695), (2781, 103305), (3195, 89919), (4365, 65817), (4635, 61983), (5751, 49955), (6887, 41715), (7313, 39285), (7857, 36565), (8343, 34435), (9585, 29973), (9991, 28755), (13095, 21939), (13905, 20661)]