421990400

素因数分解:

$2^{12}\times 5^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1$

素因数の和:364

約数の個数: 156

約数和(自身を含む): 1130456292

約数和(自身を除く): 708465892

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, 200, 208, 256, 260, 317, 320, 325, 400, 416, 512, 520, 634, 640, 650, 800, 832, 1024, 1040, 1268, 1280, 1300, 1585, 1600, 1664, 2048, 2080, 2536, 2560, 2600, 3170, 3200, 3328, 4096, 4121, 4160, 5072, 5120, 5200, 6340, 6400, 6656, 7925, 8242, 8320, 10144, 10240, 10400, 12680, 12800, 13312, 15850, 16484, 16640, 20288, 20480, 20605, 20800, 25360, 25600, 26624, 31700, 32968, 33280, 40576, 41210, 41600, 50720, 51200, 53248, 63400, 65936, 66560, 81152, 82420, 83200, 101440, 102400, 103025, 126800, 131872, 133120, 162304, 164840, 166400, 202880, 206050, 253600, 263744, 266240, 324608, 329680, 332800, 405760, 412100, 507200, 527488, 649216, 659360, 665600, 811520, 824200, 1014400, 1054976, 1298432, 1318720, 1331200, 1623040, 1648400, 2028800, 2109952, 2637440, 3246080, 3296800, 4057600, 4219904, 5274880, 6492160, 6593600, 8115200, 8439808, 10549760, 13187200, 16230400, 16879616, 21099520, 26374400, 32460800, 42199040, 52748800, 84398080, 105497600, 210995200, 421990400]

約数ペア:

[(1, 421990400), (2, 210995200), (4, 105497600), (5, 84398080), (8, 52748800), (10, 42199040), (13, 32460800), (16, 26374400), (20, 21099520), (25, 16879616), (26, 16230400), (32, 13187200), (40, 10549760), (50, 8439808), (52, 8115200), (64, 6593600), (65, 6492160), (80, 5274880), (100, 4219904), (104, 4057600), (128, 3296800), (130, 3246080), (160, 2637440), (200, 2109952), (208, 2028800), (256, 1648400), (260, 1623040), (317, 1331200), (320, 1318720), (325, 1298432), (400, 1054976), (416, 1014400), (512, 824200), (520, 811520), (634, 665600), (640, 659360), (650, 649216), (800, 527488), (832, 507200), (1024, 412100), (1040, 405760), (1268, 332800), (1280, 329680), (1300, 324608), (1585, 266240), (1600, 263744), (1664, 253600), (2048, 206050), (2080, 202880), (2536, 166400), (2560, 164840), (2600, 162304), (3170, 133120), (3200, 131872), (3328, 126800), (4096, 103025), (4121, 102400), (4160, 101440), (5072, 83200), (5120, 82420), (5200, 81152), (6340, 66560), (6400, 65936), (6656, 63400), (7925, 53248), (8242, 51200), (8320, 50720), (10144, 41600), (10240, 41210), (10400, 40576), (12680, 33280), (12800, 32968), (13312, 31700), (15850, 26624), (16484, 25600), (16640, 25360), (20288, 20800), (20480, 20605)]