28685440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1$

素因数の和:382

約数の個数: 128

約数和(自身を含む): 82742400

約数和(自身を除く): 54056960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 337, 380, 448, 532, 560, 608, 640, 665, 674, 760, 896, 1064, 1120, 1216, 1330, 1348, 1520, 1685, 2128, 2240, 2359, 2432, 2660, 2696, 3040, 3370, 4256, 4480, 4718, 5320, 5392, 6080, 6403, 6740, 8512, 9436, 10640, 10784, 11795, 12160, 12806, 13480, 17024, 18872, 21280, 21568, 23590, 25612, 26960, 32015, 37744, 42560, 43136, 44821, 47180, 51224, 53920, 64030, 75488, 85120, 89642, 94360, 102448, 107840, 128060, 150976, 179284, 188720, 204896, 215680, 224105, 256120, 301952, 358568, 377440, 409792, 448210, 512240, 717136, 754880, 819584, 896420, 1024480, 1434272, 1509760, 1792840, 2048960, 2868544, 3585680, 4097920, 5737088, 7171360, 14342720, 28685440]

約数ペア:

[(1, 28685440), (2, 14342720), (4, 7171360), (5, 5737088), (7, 4097920), (8, 3585680), (10, 2868544), (14, 2048960), (16, 1792840), (19, 1509760), (20, 1434272), (28, 1024480), (32, 896420), (35, 819584), (38, 754880), (40, 717136), (56, 512240), (64, 448210), (70, 409792), (76, 377440), (80, 358568), (95, 301952), (112, 256120), (128, 224105), (133, 215680), (140, 204896), (152, 188720), (160, 179284), (190, 150976), (224, 128060), (266, 107840), (280, 102448), (304, 94360), (320, 89642), (337, 85120), (380, 75488), (448, 64030), (532, 53920), (560, 51224), (608, 47180), (640, 44821), (665, 43136), (674, 42560), (760, 37744), (896, 32015), (1064, 26960), (1120, 25612), (1216, 23590), (1330, 21568), (1348, 21280), (1520, 18872), (1685, 17024), (2128, 13480), (2240, 12806), (2359, 12160), (2432, 11795), (2660, 10784), (2696, 10640), (3040, 9436), (3370, 8512), (4256, 6740), (4480, 6403), (4718, 6080), (5320, 5392)]