128510284

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 263208960

約数和(自身を除く): 134698676

約数列:

[1, 2, 4, 7, 14, 28, 71, 127, 142, 254, 284, 497, 508, 509, 889, 994, 1018, 1778, 1988, 2036, 3556, 3563, 7126, 9017, 14252, 18034, 36068, 36139, 63119, 64643, 72278, 126238, 129286, 144556, 252476, 252973, 258572, 452501, 505946, 905002, 1011892, 1810004, 4589653, 9179306, 18358612, 32127571, 64255142, 128510284]

約数ペア:

[(1, 128510284), (2, 64255142), (4, 32127571), (7, 18358612), (14, 9179306), (28, 4589653), (71, 1810004), (127, 1011892), (142, 905002), (254, 505946), (284, 452501), (497, 258572), (508, 252973), (509, 252476), (889, 144556), (994, 129286), (1018, 126238), (1778, 72278), (1988, 64643), (2036, 63119), (3556, 36139), (3563, 36068), (7126, 18034), (9017, 14252)]