28878080

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 86534784

約数和(自身を除く): 57656704

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 128, 140, 154, 160, 176, 220, 224, 256, 280, 293, 308, 320, 352, 385, 440, 448, 560, 586, 616, 640, 704, 770, 880, 896, 1120, 1172, 1232, 1280, 1408, 1465, 1540, 1760, 1792, 2051, 2240, 2344, 2464, 2816, 2930, 3080, 3223, 3520, 4102, 4480, 4688, 4928, 5860, 6160, 6446, 7040, 8204, 8960, 9376, 9856, 10255, 11720, 12320, 12892, 14080, 16115, 16408, 18752, 19712, 20510, 22561, 23440, 24640, 25784, 32230, 32816, 37504, 41020, 45122, 46880, 49280, 51568, 64460, 65632, 75008, 82040, 90244, 93760, 98560, 103136, 112805, 128920, 131264, 164080, 180488, 187520, 206272, 225610, 257840, 262528, 328160, 360976, 375040, 412544, 451220, 515680, 525056, 656320, 721952, 825088, 902440, 1031360, 1312640, 1443904, 1804880, 2062720, 2625280, 2887808, 3609760, 4125440, 5775616, 7219520, 14439040, 28878080]

約数ペア:

[(1, 28878080), (2, 14439040), (4, 7219520), (5, 5775616), (7, 4125440), (8, 3609760), (10, 2887808), (11, 2625280), (14, 2062720), (16, 1804880), (20, 1443904), (22, 1312640), (28, 1031360), (32, 902440), (35, 825088), (40, 721952), (44, 656320), (55, 525056), (56, 515680), (64, 451220), (70, 412544), (77, 375040), (80, 360976), (88, 328160), (110, 262528), (112, 257840), (128, 225610), (140, 206272), (154, 187520), (160, 180488), (176, 164080), (220, 131264), (224, 128920), (256, 112805), (280, 103136), (293, 98560), (308, 93760), (320, 90244), (352, 82040), (385, 75008), (440, 65632), (448, 64460), (560, 51568), (586, 49280), (616, 46880), (640, 45122), (704, 41020), (770, 37504), (880, 32816), (896, 32230), (1120, 25784), (1172, 24640), (1232, 23440), (1280, 22561), (1408, 20510), (1465, 19712), (1540, 18752), (1760, 16408), (1792, 16115), (2051, 14080), (2240, 12892), (2344, 12320), (2464, 11720), (2816, 10255), (2930, 9856), (3080, 9376), (3223, 8960), (3520, 8204), (4102, 7040), (4480, 6446), (4688, 6160), (4928, 5860)]