18139480

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1033}}^1$

素因数の和:1483

約数の個数: 32

約数和(自身を含む): 40946400

約数和(自身を除く): 22806920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1033, 1756, 2066, 2195, 3512, 4132, 4390, 5165, 8264, 8780, 10330, 17560, 20660, 41320, 453487, 906974, 1813948, 2267435, 3627896, 4534870, 9069740, 18139480]

約数ペア:

[(1, 18139480), (2, 9069740), (4, 4534870), (5, 3627896), (8, 2267435), (10, 1813948), (20, 906974), (40, 453487), (439, 41320), (878, 20660), (1033, 17560), (1756, 10330), (2066, 8780), (2195, 8264), (3512, 5165), (4132, 4390)]