72557920

素因数分解:

$2^5\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1033}}^1$

素因数の和:1487

約数の個数: 48

約数和(自身を含む): 171974880

約数和(自身を除く): 99416960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 439, 878, 1033, 1756, 2066, 2195, 3512, 4132, 4390, 5165, 7024, 8264, 8780, 10330, 14048, 16528, 17560, 20660, 33056, 35120, 41320, 70240, 82640, 165280, 453487, 906974, 1813948, 2267435, 3627896, 4534870, 7255792, 9069740, 14511584, 18139480, 36278960, 72557920]

約数ペア:

[(1, 72557920), (2, 36278960), (4, 18139480), (5, 14511584), (8, 9069740), (10, 7255792), (16, 4534870), (20, 3627896), (32, 2267435), (40, 1813948), (80, 906974), (160, 453487), (439, 165280), (878, 82640), (1033, 70240), (1756, 41320), (2066, 35120), (2195, 33056), (3512, 20660), (4132, 17560), (4390, 16528), (5165, 14048), (7024, 10330), (8264, 8780)]