20387600

素因数分解:

$2^4\times 5^2\times {\mathrm{50969}}^1$

素因数の和:50987

約数の個数: 30

約数和(自身を含む): 48982170

約数和(自身を除く): 28594570

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50969, 101938, 203876, 254845, 407752, 509690, 815504, 1019380, 1274225, 2038760, 2548450, 4077520, 5096900, 10193800, 20387600]

約数ペア:

[(1, 20387600), (2, 10193800), (4, 5096900), (5, 4077520), (8, 2548450), (10, 2038760), (16, 1274225), (20, 1019380), (25, 815504), (40, 509690), (50, 407752), (80, 254845), (100, 203876), (200, 101938), (400, 50969)]