5150000

素因数分解:

$2^4\times 5^5\times {\mathrm{103}}^1$

素因数の和:136

約数の個数: 60

約数和(自身を含む): 12592944

約数和(自身を除く): 7442944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 103, 125, 200, 206, 250, 400, 412, 500, 515, 625, 824, 1000, 1030, 1250, 1648, 2000, 2060, 2500, 2575, 3125, 4120, 5000, 5150, 6250, 8240, 10000, 10300, 12500, 12875, 20600, 25000, 25750, 41200, 50000, 51500, 64375, 103000, 128750, 206000, 257500, 321875, 515000, 643750, 1030000, 1287500, 2575000, 5150000]

約数ペア:

[(1, 5150000), (2, 2575000), (4, 1287500), (5, 1030000), (8, 643750), (10, 515000), (16, 321875), (20, 257500), (25, 206000), (40, 128750), (50, 103000), (80, 64375), (100, 51500), (103, 50000), (125, 41200), (200, 25750), (206, 25000), (250, 20600), (400, 12875), (412, 12500), (500, 10300), (515, 10000), (625, 8240), (824, 6250), (1000, 5150), (1030, 5000), (1250, 4120), (1648, 3125), (2000, 2575), (2060, 2500)]