66840968

素因数分解:

$2^3\times {\mathrm{991}}^1\times {\mathrm{8431}}^1$

素因数の和:9428

約数の個数: 16

約数和(自身を含む): 125468160

約数和(自身を除く): 58627192

約数列:

[1, 2, 4, 8, 991, 1982, 3964, 7928, 8431, 16862, 33724, 67448, 8355121, 16710242, 33420484, 66840968]

約数ペア:

[(1, 66840968), (2, 33420484), (4, 16710242), (8, 8355121), (991, 67448), (1982, 33724), (3964, 16862), (7928, 8431)]