28780491267

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1\times {\mathrm{727}}^1$

素因数の和:1190

約数の個数: 80

約数和(自身を含む): 47432216832

約数和(自身を除く): 18651725565

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 157, 283, 297, 471, 727, 849, 891, 1413, 1727, 2181, 2547, 3113, 4239, 5181, 6543, 7641, 7997, 9339, 12717, 15543, 19629, 22923, 23991, 28017, 44431, 46629, 58887, 71973, 84051, 114139, 133293, 139887, 205741, 215919, 252153, 342417, 399879, 488741, 617223, 647757, 1027251, 1199637, 1255529, 1466223, 1851669, 2263151, 3081753, 3598911, 3766587, 4398669, 5555007, 6789453, 9245259, 11299761, 13196007, 16665021, 20368359, 32301337, 33899283, 39588021, 61105077, 96904011, 101697849, 183315231, 290712033, 355314707, 872136099, 1065944121, 2616408297, 3197832363, 9593497089, 28780491267]

約数ペア:

[(1, 28780491267), (3, 9593497089), (9, 3197832363), (11, 2616408297), (27, 1065944121), (33, 872136099), (81, 355314707), (99, 290712033), (157, 183315231), (283, 101697849), (297, 96904011), (471, 61105077), (727, 39588021), (849, 33899283), (891, 32301337), (1413, 20368359), (1727, 16665021), (2181, 13196007), (2547, 11299761), (3113, 9245259), (4239, 6789453), (5181, 5555007), (6543, 4398669), (7641, 3766587), (7997, 3598911), (9339, 3081753), (12717, 2263151), (15543, 1851669), (19629, 1466223), (22923, 1255529), (23991, 1199637), (28017, 1027251), (44431, 647757), (46629, 617223), (58887, 488741), (71973, 399879), (84051, 342417), (114139, 252153), (133293, 215919), (139887, 205741)]