264400000

素因数分解:

$2^7\times 5^5\times {\mathrm{661}}^1$

素因数の和:700

約数の個数: 96

約数和(自身を含む): 659371860

約数和(自身を除く): 394971860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 661, 800, 1000, 1250, 1322, 1600, 2000, 2500, 2644, 3125, 3200, 3305, 4000, 5000, 5288, 6250, 6610, 8000, 10000, 10576, 12500, 13220, 16000, 16525, 20000, 21152, 25000, 26440, 33050, 40000, 42304, 50000, 52880, 66100, 80000, 82625, 84608, 100000, 105760, 132200, 165250, 200000, 211520, 264400, 330500, 400000, 413125, 423040, 528800, 661000, 826250, 1057600, 1322000, 1652500, 2065625, 2115200, 2644000, 3305000, 4131250, 5288000, 6610000, 8262500, 10576000, 13220000, 16525000, 26440000, 33050000, 52880000, 66100000, 132200000, 264400000]

約数ペア:

[(1, 264400000), (2, 132200000), (4, 66100000), (5, 52880000), (8, 33050000), (10, 26440000), (16, 16525000), (20, 13220000), (25, 10576000), (32, 8262500), (40, 6610000), (50, 5288000), (64, 4131250), (80, 3305000), (100, 2644000), (125, 2115200), (128, 2065625), (160, 1652500), (200, 1322000), (250, 1057600), (320, 826250), (400, 661000), (500, 528800), (625, 423040), (640, 413125), (661, 400000), (800, 330500), (1000, 264400), (1250, 211520), (1322, 200000), (1600, 165250), (2000, 132200), (2500, 105760), (2644, 100000), (3125, 84608), (3200, 82625), (3305, 80000), (4000, 66100), (5000, 52880), (5288, 50000), (6250, 42304), (6610, 40000), (8000, 33050), (10000, 26440), (10576, 25000), (12500, 21152), (13220, 20000), (16000, 16525)]