8390240

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1279}}^1$

素因数の和:1335

約数の個数: 48

約数和(自身を含む): 20321280

約数和(自身を除く): 11931040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1279, 1312, 1640, 2558, 3280, 5116, 6395, 6560, 10232, 12790, 20464, 25580, 40928, 51160, 52439, 102320, 104878, 204640, 209756, 262195, 419512, 524390, 839024, 1048780, 1678048, 2097560, 4195120, 8390240]

約数ペア:

[(1, 8390240), (2, 4195120), (4, 2097560), (5, 1678048), (8, 1048780), (10, 839024), (16, 524390), (20, 419512), (32, 262195), (40, 209756), (41, 204640), (80, 104878), (82, 102320), (160, 52439), (164, 51160), (205, 40928), (328, 25580), (410, 20464), (656, 12790), (820, 10232), (1279, 6560), (1312, 6395), (1640, 5116), (2558, 3280)]