51500000

素因数分解:

$2^5\times 5^6\times {\mathrm{103}}^1$

素因数の和:143

約数の個数: 84

約数和(自身を含む): 127967112

約数和(自身を除く): 76467112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 103, 125, 160, 200, 206, 250, 400, 412, 500, 515, 625, 800, 824, 1000, 1030, 1250, 1648, 2000, 2060, 2500, 2575, 3125, 3296, 4000, 4120, 5000, 5150, 6250, 8240, 10000, 10300, 12500, 12875, 15625, 16480, 20000, 20600, 25000, 25750, 31250, 41200, 50000, 51500, 62500, 64375, 82400, 100000, 103000, 125000, 128750, 206000, 250000, 257500, 321875, 412000, 500000, 515000, 643750, 1030000, 1287500, 1609375, 2060000, 2575000, 3218750, 5150000, 6437500, 10300000, 12875000, 25750000, 51500000]

約数ペア:

[(1, 51500000), (2, 25750000), (4, 12875000), (5, 10300000), (8, 6437500), (10, 5150000), (16, 3218750), (20, 2575000), (25, 2060000), (32, 1609375), (40, 1287500), (50, 1030000), (80, 643750), (100, 515000), (103, 500000), (125, 412000), (160, 321875), (200, 257500), (206, 250000), (250, 206000), (400, 128750), (412, 125000), (500, 103000), (515, 100000), (625, 82400), (800, 64375), (824, 62500), (1000, 51500), (1030, 50000), (1250, 41200), (1648, 31250), (2000, 25750), (2060, 25000), (2500, 20600), (2575, 20000), (3125, 16480), (3296, 15625), (4000, 12875), (4120, 12500), (5000, 10300), (5150, 10000), (6250, 8240)]