28254240

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{2803}}^1$

素因数の和:2831

約数の個数: 144

約数和(自身を含む): 110230848

約数和(自身を除く): 81976608

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 2803, 3360, 5040, 5606, 8409, 10080, 11212, 14015, 16818, 19621, 22424, 25227, 28030, 33636, 39242, 42045, 44848, 50454, 56060, 58863, 67272, 78484, 84090, 89696, 98105, 100908, 112120, 117726, 126135, 134544, 156968, 168180, 176589, 196210, 201816, 224240, 235452, 252270, 269088, 294315, 313936, 336360, 353178, 392420, 403632, 448480, 470904, 504540, 588630, 627872, 672720, 706356, 784840, 807264, 882945, 941808, 1009080, 1177260, 1345440, 1412712, 1569680, 1765890, 1883616, 2018160, 2354520, 2825424, 3139360, 3531780, 4036320, 4709040, 5650848, 7063560, 9418080, 14127120, 28254240]

約数ペア:

[(1, 28254240), (2, 14127120), (3, 9418080), (4, 7063560), (5, 5650848), (6, 4709040), (7, 4036320), (8, 3531780), (9, 3139360), (10, 2825424), (12, 2354520), (14, 2018160), (15, 1883616), (16, 1765890), (18, 1569680), (20, 1412712), (21, 1345440), (24, 1177260), (28, 1009080), (30, 941808), (32, 882945), (35, 807264), (36, 784840), (40, 706356), (42, 672720), (45, 627872), (48, 588630), (56, 504540), (60, 470904), (63, 448480), (70, 403632), (72, 392420), (80, 353178), (84, 336360), (90, 313936), (96, 294315), (105, 269088), (112, 252270), (120, 235452), (126, 224240), (140, 201816), (144, 196210), (160, 176589), (168, 168180), (180, 156968), (210, 134544), (224, 126135), (240, 117726), (252, 112120), (280, 100908), (288, 98105), (315, 89696), (336, 84090), (360, 78484), (420, 67272), (480, 58863), (504, 56060), (560, 50454), (630, 44848), (672, 42045), (720, 39242), (840, 33636), (1008, 28030), (1120, 25227), (1260, 22424), (1440, 19621), (1680, 16818), (2016, 14015), (2520, 11212), (2803, 10080), (3360, 8409), (5040, 5606)]