39608840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3853}}^1$

素因数の和:4121

約数の個数: 32

約数和(自身を含む): 89489880

約数和(自身を除く): 49881040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 3853, 5140, 7706, 10280, 15412, 19265, 30824, 38530, 77060, 154120, 990221, 1980442, 3960884, 4951105, 7921768, 9902210, 19804420, 39608840]

約数ペア:

[(1, 39608840), (2, 19804420), (4, 9902210), (5, 7921768), (8, 4951105), (10, 3960884), (20, 1980442), (40, 990221), (257, 154120), (514, 77060), (1028, 38530), (1285, 30824), (2056, 19265), (2570, 15412), (3853, 10280), (5140, 7706)]