40857880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{433}}^1$

素因数の和:788

約数の個数: 64

約数和(自身を含む): 105618240

約数和(自身を除く): 64760360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 337, 433, 674, 866, 1348, 1685, 1732, 2165, 2359, 2696, 3031, 3370, 3464, 4330, 4718, 6062, 6740, 8660, 9436, 11795, 12124, 13480, 15155, 17320, 18872, 23590, 24248, 30310, 47180, 60620, 94360, 121240, 145921, 291842, 583684, 729605, 1021447, 1167368, 1459210, 2042894, 2918420, 4085788, 5107235, 5836840, 8171576, 10214470, 20428940, 40857880]

約数ペア:

[(1, 40857880), (2, 20428940), (4, 10214470), (5, 8171576), (7, 5836840), (8, 5107235), (10, 4085788), (14, 2918420), (20, 2042894), (28, 1459210), (35, 1167368), (40, 1021447), (56, 729605), (70, 583684), (140, 291842), (280, 145921), (337, 121240), (433, 94360), (674, 60620), (866, 47180), (1348, 30310), (1685, 24248), (1732, 23590), (2165, 18872), (2359, 17320), (2696, 15155), (3031, 13480), (3370, 12124), (3464, 11795), (4330, 9436), (4718, 8660), (6062, 6740)]