991890850

素因数分解:

$2^1\times 5^2\times {\mathrm{503}}^1\times {\mathrm{39439}}^1$

素因数の和:39954

約数の個数: 24

約数和(自身を含む): 1848631680

約数和(自身を除く): 856740830

約数列:

[1, 2, 5, 10, 25, 50, 503, 1006, 2515, 5030, 12575, 25150, 39439, 78878, 197195, 394390, 985975, 1971950, 19837817, 39675634, 99189085, 198378170, 495945425, 991890850]

約数ペア:

[(1, 991890850), (2, 495945425), (5, 198378170), (10, 99189085), (25, 39675634), (50, 19837817), (503, 1971950), (1006, 985975), (2515, 394390), (5030, 197195), (12575, 78878), (25150, 39439)]