128264920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3607}}^1$

素因数の和:3752

約数の個数: 64

約数和(自身を含む): 332513280

約数和(自身を除く): 204248360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 127, 140, 254, 280, 508, 635, 889, 1016, 1270, 1778, 2540, 3556, 3607, 4445, 5080, 7112, 7214, 8890, 14428, 17780, 18035, 25249, 28856, 35560, 36070, 50498, 72140, 100996, 126245, 144280, 201992, 252490, 458089, 504980, 916178, 1009960, 1832356, 2290445, 3206623, 3664712, 4580890, 6413246, 9161780, 12826492, 16033115, 18323560, 25652984, 32066230, 64132460, 128264920]

約数ペア:

[(1, 128264920), (2, 64132460), (4, 32066230), (5, 25652984), (7, 18323560), (8, 16033115), (10, 12826492), (14, 9161780), (20, 6413246), (28, 4580890), (35, 3664712), (40, 3206623), (56, 2290445), (70, 1832356), (127, 1009960), (140, 916178), (254, 504980), (280, 458089), (508, 252490), (635, 201992), (889, 144280), (1016, 126245), (1270, 100996), (1778, 72140), (2540, 50498), (3556, 36070), (3607, 35560), (4445, 28856), (5080, 25249), (7112, 18035), (7214, 17780), (8890, 14428)]