7139728900

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{655021}}^1$

素因数の和:655144

約数の個数: 36

約数和(自身を含む): 15635375140

約数和(自身を除く): 8495646240

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 5450, 10900, 655021, 1310042, 2620084, 3275105, 6550210, 13100420, 16375525, 32751050, 65502100, 71397289, 142794578, 285589156, 356986445, 713972890, 1427945780, 1784932225, 3569864450, 7139728900]

約数ペア:

[(1, 7139728900), (2, 3569864450), (4, 1784932225), (5, 1427945780), (10, 713972890), (20, 356986445), (25, 285589156), (50, 142794578), (100, 71397289), (109, 65502100), (218, 32751050), (436, 16375525), (545, 13100420), (1090, 6550210), (2180, 3275105), (2725, 2620084), (5450, 1310042), (10900, 655021)]