47142520

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1783}}^1$

素因数の和:2455

約数の個数: 32

約数和(自身を含む): 106290720

約数和(自身を除く): 59148200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 1322, 1783, 2644, 3305, 3566, 5288, 6610, 7132, 8915, 13220, 14264, 17830, 26440, 35660, 71320, 1178563, 2357126, 4714252, 5892815, 9428504, 11785630, 23571260, 47142520]

約数ペア:

[(1, 47142520), (2, 23571260), (4, 11785630), (5, 9428504), (8, 5892815), (10, 4714252), (20, 2357126), (40, 1178563), (661, 71320), (1322, 35660), (1783, 26440), (2644, 17830), (3305, 14264), (3566, 13220), (5288, 8915), (6610, 7132)]