65561600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 132

約数和(自身を含む): 175902804

約数和(自身を除く): 110341204

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 197, 200, 208, 256, 260, 320, 325, 394, 400, 416, 512, 520, 640, 650, 788, 800, 832, 985, 1024, 1040, 1280, 1300, 1576, 1600, 1664, 1970, 2080, 2560, 2561, 2600, 3152, 3200, 3328, 3940, 4160, 4925, 5120, 5122, 5200, 6304, 6400, 6656, 7880, 8320, 9850, 10244, 10400, 12608, 12800, 12805, 13312, 15760, 16640, 19700, 20488, 20800, 25216, 25600, 25610, 31520, 33280, 39400, 40976, 41600, 50432, 51220, 63040, 64025, 66560, 78800, 81952, 83200, 100864, 102440, 126080, 128050, 157600, 163904, 166400, 201728, 204880, 252160, 256100, 315200, 327808, 332800, 409760, 504320, 512200, 630400, 655616, 819520, 1008640, 1024400, 1260800, 1311232, 1639040, 2048800, 2521600, 2622464, 3278080, 4097600, 5043200, 6556160, 8195200, 13112320, 16390400, 32780800, 65561600]

約数ペア:

[(1, 65561600), (2, 32780800), (4, 16390400), (5, 13112320), (8, 8195200), (10, 6556160), (13, 5043200), (16, 4097600), (20, 3278080), (25, 2622464), (26, 2521600), (32, 2048800), (40, 1639040), (50, 1311232), (52, 1260800), (64, 1024400), (65, 1008640), (80, 819520), (100, 655616), (104, 630400), (128, 512200), (130, 504320), (160, 409760), (197, 332800), (200, 327808), (208, 315200), (256, 256100), (260, 252160), (320, 204880), (325, 201728), (394, 166400), (400, 163904), (416, 157600), (512, 128050), (520, 126080), (640, 102440), (650, 100864), (788, 83200), (800, 81952), (832, 78800), (985, 66560), (1024, 64025), (1040, 63040), (1280, 51220), (1300, 50432), (1576, 41600), (1600, 40976), (1664, 39400), (1970, 33280), (2080, 31520), (2560, 25610), (2561, 25600), (2600, 25216), (3152, 20800), (3200, 20488), (3328, 19700), (3940, 16640), (4160, 15760), (4925, 13312), (5120, 12805), (5122, 12800), (5200, 12608), (6304, 10400), (6400, 10244), (6656, 9850), (7880, 8320)]