28040320

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1$

素因数の和:606

約数の個数: 128

約数和(自身を含む): 83721600

約数和(自身を除く): 55681280

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, 280, 308, 320, 352, 385, 440, 448, 560, 569, 616, 640, 704, 770, 880, 896, 1120, 1138, 1232, 1408, 1540, 1760, 2240, 2276, 2464, 2845, 3080, 3520, 3983, 4480, 4552, 4928, 5690, 6160, 6259, 7040, 7966, 9104, 9856, 11380, 12320, 12518, 15932, 18208, 19915, 22760, 24640, 25036, 31295, 31864, 36416, 39830, 43813, 45520, 49280, 50072, 62590, 63728, 72832, 79660, 87626, 91040, 100144, 125180, 127456, 159320, 175252, 182080, 200288, 219065, 250360, 254912, 318640, 350504, 364160, 400576, 438130, 500720, 509824, 637280, 701008, 801152, 876260, 1001440, 1274560, 1402016, 1752520, 2002880, 2549120, 2804032, 3505040, 4005760, 5608064, 7010080, 14020160, 28040320]

約数ペア:

[(1, 28040320), (2, 14020160), (4, 7010080), (5, 5608064), (7, 4005760), (8, 3505040), (10, 2804032), (11, 2549120), (14, 2002880), (16, 1752520), (20, 1402016), (22, 1274560), (28, 1001440), (32, 876260), (35, 801152), (40, 701008), (44, 637280), (55, 509824), (56, 500720), (64, 438130), (70, 400576), (77, 364160), (80, 350504), (88, 318640), (110, 254912), (112, 250360), (128, 219065), (140, 200288), (154, 182080), (160, 175252), (176, 159320), (220, 127456), (224, 125180), (280, 100144), (308, 91040), (320, 87626), (352, 79660), (385, 72832), (440, 63728), (448, 62590), (560, 50072), (569, 49280), (616, 45520), (640, 43813), (704, 39830), (770, 36416), (880, 31864), (896, 31295), (1120, 25036), (1138, 24640), (1232, 22760), (1408, 19915), (1540, 18208), (1760, 15932), (2240, 12518), (2276, 12320), (2464, 11380), (2845, 9856), (3080, 9104), (3520, 7966), (3983, 7040), (4480, 6259), (4552, 6160), (4928, 5690)]