2216840

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 5033880

約数和(自身を除く): 2817040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 353, 628, 706, 785, 1256, 1412, 1570, 1765, 2824, 3140, 3530, 6280, 7060, 14120, 55421, 110842, 221684, 277105, 443368, 554210, 1108420, 2216840]

約数ペア:

[(1, 2216840), (2, 1108420), (4, 554210), (5, 443368), (8, 277105), (10, 221684), (20, 110842), (40, 55421), (157, 14120), (314, 7060), (353, 6280), (628, 3530), (706, 3140), (785, 2824), (1256, 1765), (1412, 1570)]