128279400

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{213799}}^1$

素因数の和:213818

約数の個数: 48

約数和(自身を含む): 397668000

約数和(自身を除く): 269388600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 75, 100, 120, 150, 200, 300, 600, 213799, 427598, 641397, 855196, 1068995, 1282794, 1710392, 2137990, 2565588, 3206985, 4275980, 5131176, 5344975, 6413970, 8551960, 10689950, 12827940, 16034925, 21379900, 25655880, 32069850, 42759800, 64139700, 128279400]

約数ペア:

[(1, 128279400), (2, 64139700), (3, 42759800), (4, 32069850), (5, 25655880), (6, 21379900), (8, 16034925), (10, 12827940), (12, 10689950), (15, 8551960), (20, 6413970), (24, 5344975), (25, 5131176), (30, 4275980), (40, 3206985), (50, 2565588), (60, 2137990), (75, 1710392), (100, 1282794), (120, 1068995), (150, 855196), (200, 641397), (300, 427598), (600, 213799)]