87171560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{719}}^1$

素因数の和:1170

約数の個数: 64

約数和(自身を含む): 224985600

約数和(自身を除く): 137814040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 433, 719, 866, 1438, 1732, 2165, 2876, 3031, 3464, 3595, 4330, 5033, 5752, 6062, 7190, 8660, 10066, 12124, 14380, 15155, 17320, 20132, 24248, 25165, 28760, 30310, 40264, 50330, 60620, 100660, 121240, 201320, 311327, 622654, 1245308, 1556635, 2179289, 2490616, 3113270, 4358578, 6226540, 8717156, 10896445, 12453080, 17434312, 21792890, 43585780, 87171560]

約数ペア:

[(1, 87171560), (2, 43585780), (4, 21792890), (5, 17434312), (7, 12453080), (8, 10896445), (10, 8717156), (14, 6226540), (20, 4358578), (28, 3113270), (35, 2490616), (40, 2179289), (56, 1556635), (70, 1245308), (140, 622654), (280, 311327), (433, 201320), (719, 121240), (866, 100660), (1438, 60620), (1732, 50330), (2165, 40264), (2876, 30310), (3031, 28760), (3464, 25165), (3595, 24248), (4330, 20132), (5033, 17320), (5752, 15155), (6062, 14380), (7190, 12124), (8660, 10066)]