128767380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{306589}}^1$

素因数の和:306608

約数の個数: 48

約数和(自身を含む): 412056960

約数和(自身を除く): 283289580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 306589, 613178, 919767, 1226356, 1532945, 1839534, 2146123, 3065890, 3679068, 4292246, 4598835, 6131780, 6438369, 8584492, 9197670, 10730615, 12876738, 18395340, 21461230, 25753476, 32191845, 42922460, 64383690, 128767380]

約数ペア:

[(1, 128767380), (2, 64383690), (3, 42922460), (4, 32191845), (5, 25753476), (6, 21461230), (7, 18395340), (10, 12876738), (12, 10730615), (14, 9197670), (15, 8584492), (20, 6438369), (21, 6131780), (28, 4598835), (30, 4292246), (35, 3679068), (42, 3065890), (60, 2146123), (70, 1839534), (84, 1532945), (105, 1226356), (140, 919767), (210, 613178), (420, 306589)]