20616210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{577}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 53830296

約数和(自身を除く): 33214086

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 397, 577, 794, 1154, 1191, 1731, 1985, 2382, 2885, 3462, 3573, 3970, 5193, 5770, 5955, 7146, 8655, 10386, 11910, 17310, 17865, 25965, 35730, 51930, 229069, 458138, 687207, 1145345, 1374414, 2061621, 2290690, 3436035, 4123242, 6872070, 10308105, 20616210]

約数ペア:

[(1, 20616210), (2, 10308105), (3, 6872070), (5, 4123242), (6, 3436035), (9, 2290690), (10, 2061621), (15, 1374414), (18, 1145345), (30, 687207), (45, 458138), (90, 229069), (397, 51930), (577, 35730), (794, 25965), (1154, 17865), (1191, 17310), (1731, 11910), (1985, 10386), (2382, 8655), (2885, 7146), (3462, 5955), (3573, 5770), (3970, 5193)]