201901904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{664151}}^1$

素因数の和:664178

約数の個数: 20

約数和(自身を含む): 411774240

約数和(自身を除く): 209872336

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 664151, 1328302, 2656604, 5313208, 10626416, 12618869, 25237738, 50475476, 100950952, 201901904]

約数ペア:

[(1, 201901904), (2, 100950952), (4, 50475476), (8, 25237738), (16, 12618869), (19, 10626416), (38, 5313208), (76, 2656604), (152, 1328302), (304, 664151)]