20287501904

素因数分解:

$2^4\times {\mathrm{2477}}^1\times {\mathrm{511897}}^1$

素因数の和:514382

約数の個数: 20

約数和(自身を含む): 39322980564

約数和(自身を除く): 19035478660

約数列:

[1, 2, 4, 8, 16, 2477, 4954, 9908, 19816, 39632, 511897, 1023794, 2047588, 4095176, 8190352, 1267968869, 2535937738, 5071875476, 10143750952, 20287501904]

約数ペア:

[(1, 20287501904), (2, 10143750952), (4, 5071875476), (8, 2535937738), (16, 1267968869), (2477, 8190352), (4954, 4095176), (9908, 2047588), (19816, 1023794), (39632, 511897)]