64128904

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^2$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 140460480

約数和(自身を除く): 76331576

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 127, 142, 254, 284, 497, 508, 568, 889, 994, 1016, 1778, 1988, 3556, 3976, 7112, 9017, 16129, 18034, 32258, 36068, 63119, 64516, 72136, 112903, 126238, 129032, 225806, 252476, 451612, 504952, 903224, 1145159, 2290318, 4580636, 8016113, 9161272, 16032226, 32064452, 64128904]

約数ペア:

[(1, 64128904), (2, 32064452), (4, 16032226), (7, 9161272), (8, 8016113), (14, 4580636), (28, 2290318), (56, 1145159), (71, 903224), (127, 504952), (142, 451612), (254, 252476), (284, 225806), (497, 129032), (508, 126238), (568, 112903), (889, 72136), (994, 64516), (1016, 63119), (1778, 36068), (1988, 32258), (3556, 18034), (3976, 16129), (7112, 9017)]