20600000

素因数分解:

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

素因数の和:140

約数の個数: 84

約数和(自身を含む): 51590448

約数和(自身を除く): 30990448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 103, 125, 160, 200, 206, 250, 320, 400, 412, 500, 515, 625, 800, 824, 1000, 1030, 1250, 1600, 1648, 2000, 2060, 2500, 2575, 3125, 3296, 4000, 4120, 5000, 5150, 6250, 6592, 8000, 8240, 10000, 10300, 12500, 12875, 16480, 20000, 20600, 25000, 25750, 32960, 40000, 41200, 50000, 51500, 64375, 82400, 100000, 103000, 128750, 164800, 200000, 206000, 257500, 321875, 412000, 515000, 643750, 824000, 1030000, 1287500, 2060000, 2575000, 4120000, 5150000, 10300000, 20600000]

約数ペア:

[(1, 20600000), (2, 10300000), (4, 5150000), (5, 4120000), (8, 2575000), (10, 2060000), (16, 1287500), (20, 1030000), (25, 824000), (32, 643750), (40, 515000), (50, 412000), (64, 321875), (80, 257500), (100, 206000), (103, 200000), (125, 164800), (160, 128750), (200, 103000), (206, 100000), (250, 82400), (320, 64375), (400, 51500), (412, 50000), (500, 41200), (515, 40000), (625, 32960), (800, 25750), (824, 25000), (1000, 20600), (1030, 20000), (1250, 16480), (1600, 12875), (1648, 12500), (2000, 10300), (2060, 10000), (2500, 8240), (2575, 8000), (3125, 6592), (3296, 6250), (4000, 5150), (4120, 5000)]