38604800

素因数分解:

$2^{12}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:76

約数の個数: 156

約数和(自身を含む): 106646820

約数和(自身を除く): 68042020

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 29, 32, 40, 50, 52, 58, 64, 65, 80, 100, 104, 116, 128, 130, 145, 160, 200, 208, 232, 256, 260, 290, 320, 325, 377, 400, 416, 464, 512, 520, 580, 640, 650, 725, 754, 800, 832, 928, 1024, 1040, 1160, 1280, 1300, 1450, 1508, 1600, 1664, 1856, 1885, 2048, 2080, 2320, 2560, 2600, 2900, 3016, 3200, 3328, 3712, 3770, 4096, 4160, 4640, 5120, 5200, 5800, 6032, 6400, 6656, 7424, 7540, 8320, 9280, 9425, 10240, 10400, 11600, 12064, 12800, 13312, 14848, 15080, 16640, 18560, 18850, 20480, 20800, 23200, 24128, 25600, 26624, 29696, 30160, 33280, 37120, 37700, 41600, 46400, 48256, 51200, 53248, 59392, 60320, 66560, 74240, 75400, 83200, 92800, 96512, 102400, 118784, 120640, 133120, 148480, 150800, 166400, 185600, 193024, 241280, 266240, 296960, 301600, 332800, 371200, 386048, 482560, 593920, 603200, 665600, 742400, 772096, 965120, 1206400, 1331200, 1484800, 1544192, 1930240, 2412800, 2969600, 3860480, 4825600, 7720960, 9651200, 19302400, 38604800]

約数ペア:

[(1, 38604800), (2, 19302400), (4, 9651200), (5, 7720960), (8, 4825600), (10, 3860480), (13, 2969600), (16, 2412800), (20, 1930240), (25, 1544192), (26, 1484800), (29, 1331200), (32, 1206400), (40, 965120), (50, 772096), (52, 742400), (58, 665600), (64, 603200), (65, 593920), (80, 482560), (100, 386048), (104, 371200), (116, 332800), (128, 301600), (130, 296960), (145, 266240), (160, 241280), (200, 193024), (208, 185600), (232, 166400), (256, 150800), (260, 148480), (290, 133120), (320, 120640), (325, 118784), (377, 102400), (400, 96512), (416, 92800), (464, 83200), (512, 75400), (520, 74240), (580, 66560), (640, 60320), (650, 59392), (725, 53248), (754, 51200), (800, 48256), (832, 46400), (928, 41600), (1024, 37700), (1040, 37120), (1160, 33280), (1280, 30160), (1300, 29696), (1450, 26624), (1508, 25600), (1600, 24128), (1664, 23200), (1856, 20800), (1885, 20480), (2048, 18850), (2080, 18560), (2320, 16640), (2560, 15080), (2600, 14848), (2900, 13312), (3016, 12800), (3200, 12064), (3328, 11600), (3712, 10400), (3770, 10240), (4096, 9425), (4160, 9280), (4640, 8320), (5120, 7540), (5200, 7424), (5800, 6656), (6032, 6400)]