129304840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{461803}}^1$

素因数の和:461821

約数の個数: 32

約数和(自身を含む): 332498880

約数和(自身を除く): 203194040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 461803, 923606, 1847212, 2309015, 3232621, 3694424, 4618030, 6465242, 9236060, 12930484, 16163105, 18472120, 25860968, 32326210, 64652420, 129304840]

約数ペア:

[(1, 129304840), (2, 64652420), (4, 32326210), (5, 25860968), (7, 18472120), (8, 16163105), (10, 12930484), (14, 9236060), (20, 6465242), (28, 4618030), (35, 3694424), (40, 3232621), (56, 2309015), (70, 1847212), (140, 923606), (280, 461803)]