1298000

素因数分解:

$2^4\times 5^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1$

素因数の和:93

約数の個数: 80

約数和(自身を含む): 3481920

約数和(自身を除く): 2183920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 59, 80, 88, 100, 110, 118, 125, 176, 200, 220, 236, 250, 275, 295, 400, 440, 472, 500, 550, 590, 649, 880, 944, 1000, 1100, 1180, 1298, 1375, 1475, 2000, 2200, 2360, 2596, 2750, 2950, 3245, 4400, 4720, 5192, 5500, 5900, 6490, 7375, 10384, 11000, 11800, 12980, 14750, 16225, 22000, 23600, 25960, 29500, 32450, 51920, 59000, 64900, 81125, 118000, 129800, 162250, 259600, 324500, 649000, 1298000]

約数ペア:

[(1, 1298000), (2, 649000), (4, 324500), (5, 259600), (8, 162250), (10, 129800), (11, 118000), (16, 81125), (20, 64900), (22, 59000), (25, 51920), (40, 32450), (44, 29500), (50, 25960), (55, 23600), (59, 22000), (80, 16225), (88, 14750), (100, 12980), (110, 11800), (118, 11000), (125, 10384), (176, 7375), (200, 6490), (220, 5900), (236, 5500), (250, 5192), (275, 4720), (295, 4400), (400, 3245), (440, 2950), (472, 2750), (500, 2596), (550, 2360), (590, 2200), (649, 2000), (880, 1475), (944, 1375), (1000, 1298), (1100, 1180)]