66560000

素因数分解:

$2^{13}\times 5^4\times {\mathrm{13}}^1$

素因数の和:59

約数の個数: 140

約数和(自身を含む): 179131722

約数和(自身を除く): 112571722

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 125, 128, 130, 160, 200, 208, 250, 256, 260, 320, 325, 400, 416, 500, 512, 520, 625, 640, 650, 800, 832, 1000, 1024, 1040, 1250, 1280, 1300, 1600, 1625, 1664, 2000, 2048, 2080, 2500, 2560, 2600, 3200, 3250, 3328, 4000, 4096, 4160, 5000, 5120, 5200, 6400, 6500, 6656, 8000, 8125, 8192, 8320, 10000, 10240, 10400, 12800, 13000, 13312, 16000, 16250, 16640, 20000, 20480, 20800, 25600, 26000, 26624, 32000, 32500, 33280, 40000, 40960, 41600, 51200, 52000, 53248, 64000, 65000, 66560, 80000, 83200, 102400, 104000, 106496, 128000, 130000, 133120, 160000, 166400, 204800, 208000, 256000, 260000, 266240, 320000, 332800, 416000, 512000, 520000, 532480, 640000, 665600, 832000, 1024000, 1040000, 1280000, 1331200, 1664000, 2080000, 2560000, 2662400, 3328000, 4160000, 5120000, 6656000, 8320000, 13312000, 16640000, 33280000, 66560000]

約数ペア:

[(1, 66560000), (2, 33280000), (4, 16640000), (5, 13312000), (8, 8320000), (10, 6656000), (13, 5120000), (16, 4160000), (20, 3328000), (25, 2662400), (26, 2560000), (32, 2080000), (40, 1664000), (50, 1331200), (52, 1280000), (64, 1040000), (65, 1024000), (80, 832000), (100, 665600), (104, 640000), (125, 532480), (128, 520000), (130, 512000), (160, 416000), (200, 332800), (208, 320000), (250, 266240), (256, 260000), (260, 256000), (320, 208000), (325, 204800), (400, 166400), (416, 160000), (500, 133120), (512, 130000), (520, 128000), (625, 106496), (640, 104000), (650, 102400), (800, 83200), (832, 80000), (1000, 66560), (1024, 65000), (1040, 64000), (1250, 53248), (1280, 52000), (1300, 51200), (1600, 41600), (1625, 40960), (1664, 40000), (2000, 33280), (2048, 32500), (2080, 32000), (2500, 26624), (2560, 26000), (2600, 25600), (3200, 20800), (3250, 20480), (3328, 20000), (4000, 16640), (4096, 16250), (4160, 16000), (5000, 13312), (5120, 13000), (5200, 12800), (6400, 10400), (6500, 10240), (6656, 10000), (8000, 8320), (8125, 8192)]