161784880

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14549}}^1$

素因数の和:14701

約数の個数: 40

約数和(自身を含む): 378882000

約数和(自身を除く): 217097120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 14549, 29098, 58196, 72745, 116392, 145490, 232784, 290980, 581960, 1163920, 2022311, 4044622, 8089244, 10111555, 16178488, 20223110, 32356976, 40446220, 80892440, 161784880]

約数ペア:

[(1, 161784880), (2, 80892440), (4, 40446220), (5, 32356976), (8, 20223110), (10, 16178488), (16, 10111555), (20, 8089244), (40, 4044622), (80, 2022311), (139, 1163920), (278, 581960), (556, 290980), (695, 232784), (1112, 145490), (1390, 116392), (2224, 72745), (2780, 58196), (5560, 29098), (11120, 14549)]