25750000

素因数分解:

$2^4\times 5^6\times {\mathrm{103}}^1$

素因数の和:141

約数の個数: 70

約数和(自身を含む): 62967944

約数和(自身を除く): 37217944

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, 15625, 20600, 25000, 25750, 31250, 41200, 50000, 51500, 62500, 64375, 103000, 125000, 128750, 206000, 250000, 257500, 321875, 515000, 643750, 1030000, 1287500, 1609375, 2575000, 3218750, 5150000, 6437500, 12875000, 25750000]

約数ペア:

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