71900680

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{3691}}^1$

素因数の和:4189

約数の個数: 32

約数和(自身を含む): 162152640

約数和(自身を除く): 90251960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3691, 3896, 4870, 7382, 9740, 14764, 18455, 19480, 29528, 36910, 73820, 147640, 1797517, 3595034, 7190068, 8987585, 14380136, 17975170, 35950340, 71900680]

約数ペア:

[(1, 71900680), (2, 35950340), (4, 17975170), (5, 14380136), (8, 8987585), (10, 7190068), (20, 3595034), (40, 1797517), (487, 147640), (974, 73820), (1948, 36910), (2435, 29528), (3691, 19480), (3896, 18455), (4870, 14764), (7382, 9740)]